Fatal error: Uncaught Error: Class 'ContaoBootstrap\Templates\View\Nav\AbstractItemHelper' not found in /home/eberhardschwarze/public_html/vendor/contao-bootstrap/templates/src/View/Nav/DropdownItemHelper.php:23 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao-bootstrap/templates/src/View/Nav/DropdownItemHelper.php on line 23