Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Http\Authenticator\AbstractAuthenticator' not found in C:\Apache24\htdocs\InvoiceTracking\vendor\symfony\security-http\Authenticator\LoginLinkAuthenticator.php:33 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\InvoiceTracking\vendor\symfony\security-http\Authenticator\LoginLinkAuthenticator.php on line 33