Fatal error: Uncaught TypeError: Argument 1 passed to Gallery::__construct() must be of the type string, null given, called in /homepages/3/d202223190/htdocs/ausstellungen/2011/galerie-am-michel/index.php on line 14 and defined in /homepages/3/d202223190/htdocs/src/Model/Gallery.php:9 Stack trace: #0 /homepages/3/d202223190/htdocs/ausstellungen/2011/galerie-am-michel/index.php(14): Gallery->__construct(NULL, NULL) #1 {main} thrown in /homepages/3/d202223190/htdocs/src/Model/Gallery.php on line 9