Error when saving in configuration sections

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Rhasspy 2.5.5 deb amd64, Debian Buster, python3

Error when saving in configuration sections, output:

[DEBUG:2020-08-12 16:08:40,381] rhasspyserver_hermes: Restarting Rhasspy
[ERROR:2020-08-12 16:08:40,404] rhasspyserver_hermes: [Errno 3] No such process
Traceback (most recent call last):
  File "quart/app.py", line 1821, in full_dispatch_request
  File "quart/app.py", line 1869, in dispatch_request
  File "rhasspy-server-hermes/rhasspyserver_hermes/__main__.py", line 1261, in api_restart
ProcessLookupError: [Errno 3] No such process