Error when running first time on Ubuntu

Hi! I followed the guide for the Debian installation on an Ubuntu OS and I got this error when running the program for the first time.

Starting up...
DEBUG:rhasspysupervisor:Namespace(debug=True, docker_compose='', local_mqtt_port=12183, mosquitto_path='mosquitto', profile='en', supervisord_conf='supervisord.conf', system_profiles=None, user_profiles=PosixPath('/home/gabrielcolon32/.config/rhasspy/profiles'))
DEBUG:rhasspysupervisor:Loading profile en (user=/home/gabrielcolon32/.config/rhasspy/profiles, system=None)
DEBUG:rhasspyprofile.profile:Loading /usr/lib/rhasspy/rhasspy-profile/rhasspyprofile/profiles/en/profile.json
DEBUG:rhasspyprofile.profile:Loading /home/gabrielcolon32/.config/rhasspy/profiles/en/profile.json
DEBUG:rhasspysupervisor:Generating supervisord conf
DEBUG:rhasspysupervisor:Microphone disabled (system=dummy)
DEBUG:rhasspysupervisor:Wake word disabled (system=dummy)
DEBUG:rhasspysupervisor:Speech to text disabled (system=dummy)
DEBUG:rhasspysupervisor:Wrote /home/gabrielcolon32/.config/rhasspy/profiles/en/supervisord.conf
Starting services...
2021-11-03 22:49:44,611 INFO supervisord started with pid 5475
2021-11-03 22:49:45,615 INFO spawned: 'mqtt' with pid 5480
2021-11-03 22:49:45,618 INFO spawned: 'dialogue' with pid 5481
2021-11-03 22:49:45,620 INFO spawned: 'intent_handling' with pid 5482
2021-11-03 22:49:45,623 INFO spawned: 'intent_recognition' with pid 5483
2021-11-03 22:49:45,637 INFO spawned: 'speakers' with pid 5484
2021-11-03 22:49:45,665 INFO spawned: 'text_to_speech' with pid 5485
[ 3045.374763]~DLT~ 5480~INFO     ~FIFO /tmp/dlt cannot be opened. Retrying later...
1635994185: mosquitto version 1.6.9 starting
1635994185: Using default config.
1635994185: Opening ipv4 listen socket on port 12183.
1635994185: Opening ipv6 listen socket on port 12183.
2021-11-03 22:49:46,688 INFO success: mqtt entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:46,688 INFO success: dialogue entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:46,688 INFO success: intent_handling entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:46,688 INFO success: intent_recognition entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:46,688 INFO success: speakers entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:46,688 INFO success: text_to_speech entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-speakers-cli-hermes/rhasspyspeakers_cli_hermes/__init__.py", line 13, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:46,893 INFO exited: speakers (exit status 1; not expected)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:47,282 INFO spawned: 'speakers' with pid 5508
2021-11-03 22:49:47,342 INFO exited: dialogue (exit status 1; not expected)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-speakers-cli-hermes/rhasspyspeakers_cli_hermes/__init__.py", line 13, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:48,222 INFO spawned: 'dialogue' with pid 5513
2021-11-03 22:49:48,261 INFO exited: speakers (exit status 1; not expected)
[DEBUG:2021-11-03 22:49:48,424] rhasspytts_cli_hermes: Namespace(debug=True, host='localhost', language='en-US', log_format='[%(levelname)s:%(asctime)s] %(name)s: %(message)s', password=None, play_command=None, port=12183, site_id=['default'], temporary_wav=True, text_on_stdin=True, tls=False, tls_ca_certs=None, tls_cert_reqs='CERT_REQUIRED', tls_certfile=None, tls_ciphers=None, tls_keyfile=None, tls_version=None, tts_command='nanotts -v {lang} -o {file}', use_jinja2=False, username=None, voices_command=None, volume=1.0)
[DEBUG:2021-11-03 22:49:48,425] asyncio: Using selector: EpollSelector
[DEBUG:2021-11-03 22:49:48,425] rhasspytts_cli_hermes: Connecting to localhost:12183
1635994188: New connection from 127.0.0.1 on port 12183.
1635994188: New client connected from 127.0.0.1 as auto-1C521619-C9EB-EBCF-1B11-E9BD43D9F586 (p2, c1, k60).
[DEBUG:2021-11-03 22:49:48,478] asyncio: Using selector: EpollSelector
[DEBUG:2021-11-03 22:49:48,478] rhasspytts_cli_hermes: Connected to MQTT broker
[DEBUG:2021-11-03 22:49:48,478] rhasspytts_cli_hermes: Subscribed to hermes/audioServer/default/playFinished
[DEBUG:2021-11-03 22:49:48,478] rhasspytts_cli_hermes: Subscribed to hermes/tts/say
[DEBUG:2021-11-03 22:49:48,478] rhasspytts_cli_hermes: Subscribed to rhasspy/tts/getVoices
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:49,418 INFO success: dialogue entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:49,420 INFO spawned: 'speakers' with pid 5523
2021-11-03 22:49:49,477 INFO exited: dialogue (exit status 1; not expected)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-speakers-cli-hermes/rhasspyspeakers_cli_hermes/__init__.py", line 13, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:50,219 INFO spawned: 'dialogue' with pid 5528
2021-11-03 22:49:50,255 INFO exited: speakers (exit status 1; not expected)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:51,228 INFO success: dialogue entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)
2021-11-03 22:49:51,280 INFO exited: dialogue (exit status 1; not expected)
[DEBUG:2021-11-03 22:49:51,647] rhasspyserver_hermes: Namespace(certfile=None, host='0.0.0.0', keyfile=None, local_mqtt_port=12183, log_format='[%(levelname)s:%(asctime)s] %(name)s: %(message)s', log_level='DEBUG', mqtt_host=None, mqtt_password=None, mqtt_port=None, mqtt_username=None, port=12101, profile='en', set=[], system_profiles=None, url_root='', user_profiles='/home/gabrielcolon32/.config/rhasspy/profiles', web_dir='/usr/lib/rhasspy/rhasspy-server-hermes/web')
[DEBUG:2021-11-03 22:49:51,840] rhasspyrasa_nlu_hermes: Namespace(casing='lower', certfile=None, debug=True, examples_path='/home/gabrielcolon32/.config/rhasspy/profiles/en/intent_examples.md', host='localhost', intent_graph=None, keyfile=None, lang=None, log_format='[%(levelname)s:%(asctime)s] %(name)s: %(message)s', number_language='en_US', password=None, port=12183, rasa_config=None, rasa_language='en', rasa_model_dir='models', rasa_project='rhasspy', rasa_url='http://localhost:5005/', replace_numbers=True, site_id=['default'], tls=False, tls_ca_certs=None, tls_cert_reqs='CERT_REQUIRED', tls_certfile=None, tls_ciphers=None, tls_keyfile=None, tls_version=None, username=None, write_graph=False)
2021-11-03 22:49:51,843 INFO spawned: 'dialogue' with pid 5535
[DEBUG:2021-11-03 22:49:51,844] asyncio: Using selector: EpollSelector
[DEBUG:2021-11-03 22:49:51,857] rhasspyrasa_nlu_hermes: Connecting to localhost:12183
[DEBUG:2021-11-03 22:49:51,884] rhasspyprofile.profile: Loading /usr/lib/rhasspy/rhasspy-profile/rhasspyprofile/profiles/en/profile.json
1635994191: New connection from 127.0.0.1 on port 12183.
[DEBUG:2021-11-03 22:49:51,890] rhasspyprofile.profile: Loading /home/gabrielcolon32/.config/rhasspy/profiles/en/profile.json
1635994191: New client connected from 127.0.0.1 as auto-315EDBEB-2BD5-7541-B096-36735006A200 (p2, c1, k60).
[DEBUG:2021-11-03 22:49:51,891] rhasspyprofile.profile: Loading default profile settings from /usr/lib/rhasspy/rhasspy-profile/rhasspyprofile/profiles/defaults.json
[DEBUG:2021-11-03 22:49:51,892] rhasspyserver_hermes: Starting core
[DEBUG:2021-11-03 22:49:51,893] rhasspyserver_hermes: Connecting to localhost:12183 (retries: 0/10)
[DEBUG:2021-11-03 22:49:51,901] rhasspyrasa_nlu_hermes: Connected to MQTT broker
[DEBUG:2021-11-03 22:49:51,902] rhasspyrasa_nlu_hermes: Subscribed to hermes/nlu/query
[DEBUG:2021-11-03 22:49:51,902] rhasspyrasa_nlu_hermes: Subscribed to rhasspy/nlu/default/train
[DEBUG:2021-11-03 22:49:51,906] asyncio: Using selector: EpollSelector
1635994191: New connection from 127.0.0.1 on port 12183.
1635994191: New client connected from 127.0.0.1 as auto-01BE9F4E-C212-CF66-C8B3-073FB3C9627A (p2, c1, k60).
[DEBUG:2021-11-03 22:49:51,911] rhasspyserver_hermes: Connected to MQTT broker
[DEBUG:2021-11-03 22:49:51,911] rhasspyserver_hermes: Subscribed to hermes/hotword/+/detected
[DEBUG:2021-11-03 22:49:51,912] rhasspyserver_hermes: Subscribed to hermes/asr/textCaptured
[DEBUG:2021-11-03 22:49:51,912] rhasspyserver_hermes: Subscribed to hermes/intent/#
[DEBUG:2021-11-03 22:49:51,912] rhasspyserver_hermes: Subscribed to hermes/nlu/intentNotRecognized
[DEBUG:2021-11-03 22:49:51,912] rhasspyserver_hermes: Subscribed to rhasspy/asr/default/+/audioCaptured
[DEBUG:2021-11-03 22:49:51,912] rhasspyserver_hermes: Subscribed to hermes/audioServer/default/audioSummary
[DEBUG:2021-11-03 22:49:51,912] rhasspyserver_hermes: Subscribed to rhasspy/asr/default/+/audioCaptured
[DEBUG:2021-11-03 22:49:51,913] rhasspyserver_hermes: Subscribed to hermes/nlu/intentNotRecognized
[DEBUG:2021-11-03 22:49:51,913] rhasspyserver_hermes: Subscribed to hermes/audioServer/default/audioSummary
[DEBUG:2021-11-03 22:49:51,913] rhasspyserver_hermes: Subscribed to hermes/hotword/+/detected
[DEBUG:2021-11-03 22:49:51,913] rhasspyserver_hermes: Subscribed to hermes/intent/#
[DEBUG:2021-11-03 22:49:51,913] rhasspyserver_hermes: Subscribed to hermes/asr/textCaptured
[INFO:2021-11-03 22:49:51,914] rhasspyserver_hermes: Started
[DEBUG:2021-11-03 22:49:51,914] rhasspyserver_hermes: Starting web server at http://0.0.0.0:12101
Running on 0.0.0.0:12101 over http (CTRL + C to quit)
[DEBUG:2021-11-03 22:49:52,213] rhasspyremote_http_hermes: Namespace(asr_command=None, asr_train_command=None, asr_train_url=None, asr_url=None, casing='ignore', certfile=None, debug=True, handle_command=None, handle_url='http://my-server:port/endpoint', host='localhost', keyfile=None, lang=None, log_format='[%(levelname)s:%(asctime)s] %(name)s: %(message)s', nlu_command=None, nlu_train_command=None, nlu_train_url=None, nlu_url=None, password=None, port=12183, site_id=['default'], tls=False, tls_ca_certs=None, tls_cert_reqs='CERT_REQUIRED', tls_certfile=None, tls_ciphers=None, tls_keyfile=None, tls_version=None, tts_url=None, username=None, voice_before_seconds=0.5, voice_current_energy_threshold=None, voice_max_current_energy_ratio_threshold=None, voice_max_energy=None, voice_max_seconds=None, voice_min_seconds=1.0, voice_sensitivity=3, voice_silence_method=<SilenceMethod.VAD_ONLY: 'vad_only'>, voice_silence_seconds=0.5, voice_skip_seconds=0.0, voice_speech_seconds=0.3, wake_channels=1, wake_command=None, wake_sample_rate=16000, wake_sample_width=2, webhook=None)
[DEBUG:2021-11-03 22:49:52,214] asyncio: Using selector: EpollSelector
[DEBUG:2021-11-03 22:49:52,218] rhasspyremote_http_hermes: Connecting to localhost:12183
1635994192: New connection from 127.0.0.1 on port 12183.
1635994192: New client connected from 127.0.0.1 as auto-7B211073-0A78-0010-09EB-85AF2179BD2C (p2, c1, k60).
[DEBUG:2021-11-03 22:49:52,229] asyncio: Using selector: EpollSelector
[DEBUG:2021-11-03 22:49:52,229] rhasspyremote_http_hermes: Connected to MQTT broker
[DEBUG:2021-11-03 22:49:52,229] rhasspyremote_http_hermes: Subscribed to rhasspy/handle/toggleOff
[DEBUG:2021-11-03 22:49:52,230] rhasspyremote_http_hermes: Subscribed to rhasspy/handle/toggleOn
[DEBUG:2021-11-03 22:49:52,230] rhasspyremote_http_hermes: Subscribed to hermes/intent/#
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:52,470 INFO spawned: 'speakers' with pid 5545
2021-11-03 22:49:52,487 INFO exited: dialogue (exit status 1; not expected)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-speakers-cli-hermes/rhasspyspeakers_cli_hermes/__init__.py", line 13, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:52,860 INFO exited: speakers (exit status 1; not expected)
2021-11-03 22:49:53,871 INFO spawned: 'dialogue' with pid 5550
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:54,446 INFO exited: dialogue (exit status 1; not expected)
2021-11-03 22:49:56,457 INFO spawned: 'dialogue' with pid 5555
2021-11-03 22:49:56,465 INFO spawned: 'speakers' with pid 5556
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-speakers-cli-hermes/rhasspyspeakers_cli_hermes/__init__.py", line 13, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:56,869 INFO exited: speakers (exit status 1; not expected)
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:49:57,011 INFO gave up: speakers entered FATAL state, too many start retries too quickly
2021-11-03 22:49:57,026 INFO exited: dialogue (exit status 1; not expected)
2021-11-03 22:50:00,033 INFO spawned: 'dialogue' with pid 5565
Traceback (most recent call last):
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/rhasspy/rhasspy-dialogue-hermes/rhasspydialogue_hermes/__init__.py", line 15, in <module>
    import soundfile
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/site-packages/soundfile.py", line 16, in <module>
    from ctypes.util import find_library as _find_library
  File "/usr/lib/rhasspy/usr/local/lib/python3.7/ctypes/__init__.py", line 7, in <module>
    from _ctypes import Union, Structure, Array
ImportError: libffi.so.6: cannot open shared object file: No such file or directory
2021-11-03 22:50:00,562 INFO exited: dialogue (exit status 1; not expected)
2021-11-03 22:50:01,565 INFO gave up: dialogue entered FATAL state, too many start retries too quickly

WallyDW had the same issue with 2.5.11, he fixed it by making a symlink from libffi.so.6 to libffi.so.7
See his post for the details