Fatal error: Uncaught Error: Class "Symfony\Component\Process\Pipes\AbstractPipes" not found in /home/sourceex/public_html/pm/vendor/symfony/process/Pipes/UnixPipes.php:23 Stack trace: #0 {main} thrown in /home/sourceex/public_html/pm/vendor/symfony/process/Pipes/UnixPipes.php on line 23