Issue: Undefined index: wikiContent - library/vw/XenForo/DataWriter.php:519

ErrorException: Undefined index: wikiContent - library/vw/XenForo/DataWriter.php:519 
Generated By: Alfa a moment ago

Stack Trace
#0 /library/vw/XenForo/DataWriter.php(519): XenForo_Application::handlePhpError(8, 'Undefined index...', '...', 519, Array)
#1 /vault/core/controller/dm/block/vw.php(194): vw_XenForo_DataWriter->delete_more(Array)
#2 /vault/core/controller/dm/block/xf.php(38): vw_DM_Block_Controller->post_delete()
#3 /library/XenForo/DataWriter.php(1793): vw_DM_Block_Controller_XF->_postDelete()
#4 /library/vw/XenForo/DataWriter.php(468): XenForo_DataWriter->delete()
#5 /vault/core/controller/dm/block/xf.php(33): vw_XenForo_DataWriter->original_delete()
#6 /vault/core/controller/dm/xf.php(431): vw_DM_Block_Controller_XF->delete()
#7 /vault/core/controller/cp/block/base/vw.php(105): vw_DM_Controller_XF->delete()
#8 /vault/core/controller/cp/block/vw.php(132): vw_CP_Block_Base_Controller->delete()
#9 /vault/core/controller/cp/block/vw.php(57): vw_CP_Block_Controller->kill()
#10 /library/vw/XenForo/ControllerAdmin/Wiki.php(113): vw_CP_Block_Controller->execute('kill', 'post')
#11 /library/XenForo/FrontController.php(351): vw_XenForo_ControllerAdmin_Wiki->actionIndex()
#12 /library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#13 /admin.php(13): XenForo_FrontController->run()
#14 {main}
Request State
array(3) {
  ["url"] => string(60) " /admin.php?wiki/&panel=block&do=kill"
  ["_GET"] => array(3) {
    ["wiki/"] => string(0) ""
    ["panel"] => string(5) "block"
    ["do"] => string(4) "kill"