ERR_NGROK_5126: You have reached the maximum of MAX destinations on a subscription

What does ERR_NGROK_5126 mean?

ngrok returns ERR_NGROK_5126 with this message:

You have reached the maximum of <MAX> destinations on a subscription.

Troubleshoot ERR_NGROK_5126 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.