Can you please verify if you have the latest version of AIPRM for ChatGPT (v1.1.11.11 for Google Chrome | v1.1.11.13 for Microsoft Edge)?
The issue may also be related to your local network or VPN. Have you tried using a different network, VPN, IP address, or device to see if the issue persists?
Moreover, there has been a reported ChatGPT outage on November 15th that might have caused this issue on your end.
Unfortunately, AIPRM cannot directly influence or help with any outages of ChatGPT or other OpenAI products.