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If you want to clear the cache on your VPS, you may do so by restarting the PHP-FPM (PHP-FastCGI Process Manager) service, which we’ll go over here. In the event of a server-wide issue that causes websites to display the 500 Internal Server Error or a change in the PHP version, you may need to restart the service after activating PHP-FPM in WHM.
1. Login as root into WHM.
![How to Restart PHP-FPM WHM?](https://www.infinitivehost.com/knowledge-base/wp-content/uploads/2023/12/image4-17-1024x579.png)
2. Search for Restart service .
![](https://www.infinitivehost.com/knowledge-base/wp-content/uploads/2023/12/image3-20-1024x686.png)
3. Then Click on PHP-FPM service for Apache under restart service section.
![](https://www.infinitivehost.com/knowledge-base/wp-content/uploads/2023/12/image1-22.png)
4. It will show restart option Then click on “yes” to restart php-fpm
![](https://www.infinitivehost.com/knowledge-base/wp-content/uploads/2023/12/image2-25-1024x310.png)