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Troubleshooting the 'License Assigned Before' Error in WP Fastest Cache

10 threads Sep 10, 2025 Plugin → Wp fastest cache

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Many users encounter a specific and frustrating error when trying to activate the premium version of the WP Fastest Cache plugin: the "License assigned before" or "This site has been used before" message. This article explains why this happens and outlines the most common steps to resolve it.

Why Does the "License Assigned Before" Error Occur?

This error is a security feature of the WP Fastest Cache licensing system. It is designed to prevent a single license key from being used on an unlimited number of websites. The system permanently ties a license to the first domain it is activated on. If you see this message, the WP Fastest Cache server recognizes the domain name you are trying to use as one that has already been associated with a different license key in the past, even if it was years ago. This can happen if you are rebuilding a site on a previously used domain or if there was a previous, forgotten activation.

How to Resolve the "License Assigned Before" Error

Since this error is related to the plugin's premium licensing system, the official WordPress.org forum guidelines prohibit discussions about it here. However, based on common user experiences, the resolution path is straightforward.

  1. Contact the WP Fastest Cache Team Directly: This is the only way to resolve this issue. You will need to request that they manually reset the domain's association on their server. This allows your new license key to be accepted for that domain.
  2. Use the Official Contact Channel: To get help, you must email their support team directly using their official contact form: https://www.wpfastestcache.com/contact-us/.
  3. Provide Necessary Details: When you contact them, be sure to include your license information and the domain name that is triggering the error. This will help them quickly locate and resolve the issue in their system.

For other common activation issues, such as a "cURL error 28: Resolving timed out", the problem is often related to a temporary server communication failure. Simply trying the activation process again after a few minutes can often resolve this.

BugWP.com is an independent resource and is not affiliated with WP Fastest Cache.

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