Issue: ErrorException: Undefined index: blockname

Fehlermeldung des Servers
Fehlerinformation
ErrorException: Undefined index: blockname - vault/core/model/block/vw.php:143
Generiert durch: Unbekanntes Benutzerkonto, Heute um 16:31 Uhr
Stapelverfolgung
#0 ../vault/core/model/block/vw.php(143): XenForo_Application::handlePhpError(8, 'Undefined index...', '/var/www/vhosts...', 143, Array)
#1 ../vault/core/view/content/list/base/vw.php(190): vw_Block_Model->cache(Array)
#2 ../vault/core/view/content/list/category/vw.php(282): vw_Content_List_Base_View->get_letters('Page', Array, Array)
#3 ../vault/core/view/content/list/base/vw.php(59): vw_Content_List_Category_View->process_letters('Page', Array, Array)
#4 ../vault/core/view/ui/category/vw.php(142): vw_Content_List_Base_View->get('Page', Array, Array, Array)
#5 ../vault/core/controller/ui/category/vw.php(81): vw_UI_Category_View->view(Object(vw_UI_Category_Controller))
#6 ../vault/core/controller/ui/stack/vw.php(359): vw_UI_Category_Controller->view()
#7 ../vault/core/controller/ui/stack/vw.php(286): vw_UI_Stack_Controller->view()
#8 ../library/vw/XenForo/ControllerPublic/Wiki.php(68): vw_UI_Stack_Controller->execute()
#9 ../library/XenForo/FrontController.php(351): vw_XenForo_ControllerPublic_Wiki->actionIndex()
#10 ../library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#11 ../index.php(13): XenForo_FrontController->run()
#12 {main}
Benötigter Status
array(3) {
["url"] => string(64) "http://regio-portal.wiki/index.php?wiki/&title=Kategorie:Politik"
["_GET"] => array(2) {
["wiki/"] => string(0) ""
["title"] => string(17) "Kategorie:Politik"
}
["_POST"] => array(0) {
}
}