Need help to resolve this error

Error Response: {"error":{"message":"(#135000) Generic user error","type":"OAuthException","code":135000,"error_data":{"messaging_product":"whatsapp","details":"Generic user error"},"fbtrace_id":"A1waaM6nHFNACvy0TmQySEo"}}

I have encountered difficulties in sending messages via the API. Specifically, no template is working at the moment apart from Hello_world.

Despite our efforts to seek assistance through the Developer Community Forum, we have not received any response for the past 15 days.

I have given the Saved session link please help me in resolving this error

https://developers.facebook.com/tools/explorer/2139742859716726/?session_id=429414193328984