Fatal error: Uncaught Error: Interface "Symfony\Component\Config\Resource\SelfCheckingResourceInterface" not found in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/symfony/config/Resource/FileResource.php:21 Stack trace: #0 {main} thrown in /home/yrdsb11w3creativ/public_html/yrdsb/vendor/symfony/config/Resource/FileResource.php on line 21