Fatal error: Uncaught Error: Class "Symfony\Component\Process\Pipes\AbstractPipes" not found in /home/yrdsb11w3creativ/public_html/yrdsb-board-v1.0.0-alpha/vendor/symfony/process/Pipes/UnixPipes.php:23 Stack trace: #0 {main} thrown in /home/yrdsb11w3creativ/public_html/yrdsb-board-v1.0.0-alpha/vendor/symfony/process/Pipes/UnixPipes.php on line 23