Fatal error: Uncaught Error: Call to undefined function Symfony\Component\Security\Http\Logout\trigger_deprecation() in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\security-http\Logout\DefaultLogoutSuccessHandler.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\security-http\Logout\DefaultLogoutSuccessHandler.php on line 18