Fatal error: Uncaught Error: Class "Webklex\PHPIMAP\Support\Masks\AttachmentMask" not found in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\webklex\php-imap\examples\custom_attachment_mask.php:13 Stack trace: #0 {main} thrown in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\webklex\php-imap\examples\custom_attachment_mask.php on line 13