Fatal error: Uncaught Error: Class 'ContaoBootstrap\Core\Environment\AbstractContext' not found in /home/eberhardschwarze/public_html/vendor/contao-bootstrap/core/src/Environment/ApplicationContext.php:23 Stack trace: #0 {main} thrown in /home/eberhardschwarze/public_html/vendor/contao-bootstrap/core/src/Environment/ApplicationContext.php on line 23