Fatal error: Uncaught Error: Value of type null is not callable in /var/www/clients/client148/web1704/web/plugins/ws5_doofinder/Bootstrap.php:2 Stack trace: #0 /var/www/clients/client148/web1704/web/includes/vendor/composer/ClassLoader.php(571): include() #1 /var/www/clients/client148/web1704/web/includes/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile() #2 [internal function]: Composer\Autoload\ClassLoader->loadClass() #3 /var/www/clients/client148/web1704/web/includes/src/Plugin/Helper.php(478): class_exists() #4 /var/www/clients/client148/web1704/web/includes/src/Shop.php(445): JTL\Plugin\Helper::bootstrap() #5 /var/www/clients/client148/web1704/web/includes/globalinclude.php(81): JTL\Shop::bootstrap() #6 /var/www/clients/client148/web1704/web/index.php(5): require('...') #7 {main} thrown in /var/www/clients/client148/web1704/web/plugins/ws5_doofinder/Bootstrap.php on line 2