Fatal error: Uncaught Error: Class "App\Entity\Attachments\AttachmentContainingDBElement" not found in /home/ntpcbgtpp/public_html/mat1/src/Entity/UserSystem/User.php:106 Stack trace: #0 {main} thrown in /home/ntpcbgtpp/public_html/mat1/src/Entity/UserSystem/User.php on line 106