help in solving the error

I use this generator (https://perchance.org/ai-character-chat ) in Opera. He doesn't generate anything (text and pictures), he just thinks all the time. Please help me. If anything, I'm a beginner, so please explain in a clearer way)

An error has occurred somewhere in your code (in lists or HTML): An unhandled promise rejection occurred: Failed to execute 'get' on 'IDBObjectStore': The parameter is not a valid key. DataError: Failed to execute 'get' on 'IDBObjectStore': The parameter is not a valid key.