Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag" not found in /home/authent1/public_html/listassorys/phpbb/vendor/symfony/http-foundation/Session/Attribute/NamespacedAttributeBag.php:20 Stack trace: #0 {main} thrown in /home/authent1/public_html/listassorys/phpbb/vendor/symfony/http-foundation/Session/Attribute/NamespacedAttributeBag.php on line 20