Fatal error: Uncaught TypeError: sizeof(): Argument #1 ($value) must be of type Countable|array, null given in /home/sites/site100029251/web/magniviertel.de/quartier/album/classes/Album.php:1487 Stack trace: #0 /home/sites/site100029251/web/magniviertel.de/quartier/album/classes/Album.php(1518): Album->numPhotos() #1 /home/sites/site100029251/web/magniviertel.de/quartier/album/view_album.php(58): Album->numVisibleItems() #2 {main} thrown in /home/sites/site100029251/web/magniviertel.de/quartier/album/classes/Album.php on line 1487