ERR_NGROK_2253: Failed to evaluate CEL expression on FIELD for ACTION at runtime: ERR

What does ERR_NGROK_2253 mean?

ngrok returns ERR_NGROK_2253 with this message:

Failed to evaluate CEL expression on <FIELD> for <ACTION> at runtime: <ERR>

Troubleshoot ERR_NGROK_2253 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

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