# INTERNAL_CACHE_LOCK_FULL

The `INTERNAL_CACHE_LOCK_FULL` error occurs when CDN is accessing internal cache. This error is usually caused by a temporary issue with the internal cache.

## Troubleshoot

To troubleshoot this error, follow these steps:

1. **Contact support:** If the error persists, [contact support](/help#issues) for further assistance


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title: "INTERNAL_CACHE_LOCK_TIMEOUT"
description: "An unexpected error happened when CDN is accessing internal cache."
last_updated: "2026-02-03T02:58:41.799Z"
source: "https://vercel.com/docs/errors/INTERNAL_CACHE_LOCK_TIMEOUT"
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