AI assitant stop responding

Questions
1

Hey, I am new to n8n and enjoyed the help of AI assitant. However, it stopped working yesterday. I am receiving this message:

:warning: Unable to connect to n8n’s AI service (null is not an object (evaluating ‘newMessages2.forEach’))

I would appreciate for your help.

  • Running version n8n@1.84.1
  • Operating system: MacOS 15.3.1.
2

I am new user too and i noticed same problem yesterday, can someone tell us why or do we have to upgrade our plan first, i really need it for a workflow im working on and being new to n8n the AI assistant has been very helpful