Fatal error: Uncaught Error: Class "Symfony\Component\Security\Http\Firewall\AbstractListener" not found in /var/www/html/demo.ininli.ca/releases/19/vendor/symfony/security-http/Firewall/SwitchUserListener.php:40 Stack trace: #0 {main} thrown in /var/www/html/demo.ininli.ca/releases/19/vendor/symfony/security-http/Firewall/SwitchUserListener.php on line 40