WCF::handleException() Unhandled exception: Call to undefined method wcf\data\category\Category::isDisabled()


#0 /www/htdocs/w013a4ae/kampfkunst-forum.at/wcf/lib/page/AbstractPage.class.php(276): wcf\page\PartnerPage->assignVariables()
#1 /www/htdocs/w013a4ae/kampfkunst-forum.at/wcf/lib/page/AbstractPage.class.php(100): wcf\page\AbstractPage->show()
#2 /www/htdocs/w013a4ae/kampfkunst-forum.at/wcf/lib/system/request/Request.class.php(58): wcf\page\AbstractPage->__run()
#3 /www/htdocs/w013a4ae/kampfkunst-forum.at/wcf/lib/system/request/RequestHandler.class.php(139): wcf\system\request\Request->execute()
#4 /www/htdocs/w013a4ae/kampfkunst-forum.at/index.php(10): wcf\system\request\RequestHandler->handle('wbb')
#5 {main}