Fatal error: Uncaught Error: Class "Egulias\EmailValidator\Parser\PartParser" not found in D:\programs\xampp\htdocs\backend-test\vendor\egulias\email-validator\src\Parser\LocalPart.php:16 Stack trace: #0 {main} thrown in D:\programs\xampp\htdocs\backend-test\vendor\egulias\email-validator\src\Parser\LocalPart.php on line 16