ERR_NGROK_5521: PROVIDER rejected authorization due to an internal server error: DESCRIPTION - ngrok documentation

What does ERR_NGROK_5521 mean?

ngrok returns ERR_NGROK_5521 with this message:

<PROVIDER> rejected authorization due to an internal server error: <DESCRIPTION>.

Troubleshoot ERR_NGROK_5521 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Where can I get more help with ERR_NGROK_5521?

Email support@ngrok.com and include the error code.