Fatal error: Uncaught Error: Class "Contao\CoreBundle\Fragment\Reference\FragmentReference" not found in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Fragment/Reference/ContentElementReference.php:18 Stack trace: #0 {main} thrown in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Fragment/Reference/ContentElementReference.php on line 18