Troubleshooting PHP

WHMCS runs on PHP code and requires several PHP extensions in order to function normally. If there is a problem with PHP on your server, you will experience problems in many areas of WHMCS.

System Requirements

For successful installation, updates, and operation, your system must meet the minimum system requirements for your WHMCS version.

Install ionCube Loader

ionCube Loader® is a PHP extension that allows decoding and encoding of WHMCS files. Make sure your system uses the correct version.