Error message: Additional properties are not allowed ('Content', 'Role' were unexpected) - 'messages.0'",

First time playing the project got a null pointer exception error in the chatGPTResponse. Tracking it down, the answer coming from ChatGPT inside ChatGPTClient.cs --> responseInfo was the error above. Apparently ChatGPT needs those two parameteres to be lowercase. Changed them in ChatGPTChatMessage.cs and got the demo running :)