Fatal error: Uncaught Error: Class "s9e\RegexpBuilder\Passes\AbstractPass" not found in /opt/lampp/htdocs/forum/flarum/vendor/s9e/regexp-builder/src/Passes/PromoteSingleStrings.php:16 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/s9e/regexp-builder/src/Passes/PromoteSingleStrings.php on line 16