Unsupported operand types: int / string|#0 /homepages/4/d536570851/htdocs/backlight/modules/module-publisher/application/models/Album.php(914): Album->getPageNumberForPhoto()
#1 /homepages/4/d536570851/htdocs/backlight/data/designer/cache/108-page-2.0.0-1-172-menu_74-106-single-2.0.0-3-50-2.view-2.template(286): Album->getIndexPageForPhoto()
#2 /homepages/4/d536570851/htdocs/backlight/modules/module-designer/application/helpers/CacheHelper.php(62): require_once('/homepages/4/d5...')
#3 /homepages/4/d536570851/htdocs/backlight/modules/module-designer/application/models/GenericEngine.php(603): CacheHelper::includeCachedFile()
#4 /homepages/4/d536570851/htdocs/backlight/modules/module-designer/application/helpers/EngineFactory.php(187): GenericEngine->renderView()
#5 /homepages/4/d536570851/htdocs/backlight/modules/module-publisher/application/controllers/GalleryController.php(353): EngineFactory->renderEngineForTemplateWithView()
#6 /homepages/4/d536570851/htdocs/backlight/modules/module-framework/controllers/Controller.php(56): GalleryController->single()
#7 /homepages/4/d536570851/htdocs/backlight/modules/module-framework/models/Dispatchable.php(136): Controller->dispatch()
#8 /homepages/4/d536570851/htdocs/backlight/modules/module-framework/Framework.php(73): Dispatchable->dispatch()
#9 /homepages/4/d536570851/htdocs/galleries/kalenderauswahl-brodbeck/05-mai/single.php(9): Framework->route()
#10 {main}|URL: /galleries/kalenderauswahl-brodbeck/05-mai/single.php