Fatal error: Uncaught Error: Call to undefined function Symfony\Contracts\Service\trigger_deprecation() in D:\Apache24\www\dls\back-end\vendor\symfony\service-contracts\ServiceSubscriberTrait.php:18 Stack trace: #0 {main} thrown in D:\Apache24\www\dls\back-end\vendor\symfony\service-contracts\ServiceSubscriberTrait.php on line 18