Connecting Telegram Bot with Open AI API

I'm currently working through the second unit of the "API calls with HTTP modules" section in the Advanced portion of the callin.io Academy. I've configured the Telegram and HTTP request modules correctly to build a Telegram Bot connected to OpenAI. However, when I run the scenario, I'm encountering the error message "Cannot read properties of null (reading ‘device’)”. Does anyone have any insights into what might be causing this? I've entered my OpenAI secret key and included the correct URL along with the request content. I initially tried the request content provided in the Academy, but it didn't work, so I copied it directly from the OpenAI documentation page. Is it possible to use a dedicated OpenAI module within callin.io instead of the HTTP Request module?