Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Http\Firewall\AbstractListener' not found in /var/www/legtux.org/users/weboconsulting/www/vendor/symfony/security-http/Firewall/SwitchUserListener.php:40 Stack trace: #0 {main} thrown in /var/www/legtux.org/users/weboconsulting/www/vendor/symfony/security-http/Firewall/SwitchUserListener.php on line 40