> ## Documentation Index
> Fetch the complete documentation index at: https://ngrok.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Error 18021

## ERR\_NGROK\_18021

You have exceeded the maximum number of concurrent endpoints allowed for this account. Log into [https://dashboard.ngrok.com/billing](https://dashboard.ngrok.com/billing) to review your usage and [https://dashboard.ngrok.com/billing/choose-a-plan](https://dashboard.ngrok.com/billing/choose-a-plan) to view your subscription options.

## Further help

If you're having trouble resolving this error, please reach out to [support@ngrok.com](mailto:support@ngrok.com?subject=Help%20with%20ERR_NGROK_18021)