Cannot connect to the web interface of rhasspy

Recently I have a smart home project on orange pi pc plus. Everything seemed to be fine until one day suddenly I couldn’t get into rhasspy’s web interface (http://ip of orange pi:12101) but I could still access the home assistant’s web interface(http: //ip of orangepi:8123). I have tried many ways but still can’t get into rhasspy’s web interface. Hope anyone can help me fix this.