I am trying to connect a custom LLM to vapi, but get this error - even though I don't see any 500s on my server https://cdn.discordapp.com/attachments/1211484481848873020/1382128127525781626/image.png?ex=684a06a0&is=6848b520&hm=1ecb3eda2f29712987f9066e563586adae555a7e1008c378f2b947363f9c82e8&