Troubleshoot PHP

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.

500 Internal Server Errors

Troubleshoot and resolve 500 Internal Server Error messages in WHMCS.

Allowed Memory Exhausted Errors

Troubleshoot and resolve Allowed memory size of xxxxx bytes exhausted errors.

ExceptionLoggingTrait Errors

Troubleshoot and resolve ExceptionLoggingTrait Class Not Found errors.

InvalidArgumentException Carbon Errors

Troubleshoot and resolve InvalidArgumentException: Data missing errors.

Legacy Smarty Tag Errors

Troubleshoot and resolve Legacy Smarty Tags errors.

OPcache Warnings

Troubleshoot and resolve warnings about the OPcache PHP extension.

PHP Execution Time Errors

Troubleshoot and resolve PHP Fatal error: Maximum execution time of 300 seconds exceeded in /path/to/file.php errors in WHMCS.

Required Function Errors

Troubleshoot and resolve Required function is not available errors.

Segmentation Fault Errors

Troubleshoot and resolve Segmentation fault errors.

TypeError covertIniSize Errors

Troubleshoot and resolve TypeError: Return value of convertIniSize() must be of the type int errors.

TypeError guessFileExtension Errors

Troubleshoot and resolve TypeError guessFileExtension() errors.