Fatal error: Uncaught Error: Call to undefined function Symfony\Contracts\Service\trigger_deprecation() in /home/defenders/public_html/0255_projects/school_sys_v2/backend/vendor/symfony/service-contracts/ServiceSubscriberTrait.php:18 Stack trace: #0 {main} thrown in /home/defenders/public_html/0255_projects/school_sys_v2/backend/vendor/symfony/service-contracts/ServiceSubscriberTrait.php on line 18