Fatal error: Uncaught Error: Class "Symfony\Component\Process\Pipes\AbstractPipes" not found in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/symfony/process/Pipes/WindowsPipes.php:27 Stack trace: #0 {main} thrown in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/symfony/process/Pipes/WindowsPipes.php on line 27