Custom GPT API Call Actions Failing

Is anyone having issues with custom GPT actions? I made a custom GPT that was seemingly working fine yesterday. One of the instructions is to make an API call via a custom action to retrieve data. Yesterday there were no issues with this, now I am unable to make the calls.

I am making a call to AWS Lambda and I can see the call being made within the logs, but ChatGPT keeps saying “Error talking to…” when openining the GPT editor, the action never completes and just spins. Did something change between now and yesterday?