ErrorException: Undefined index: language_id - library/XenForo/Visitor.php:466

[CTXMedia]

ErrorException: Undefined index: language_id - library/XenForo/Visitor.php:466
Generated By: Unknown Account, 1 minute ago

Stack trace:
#0 /home/cyclechat/public_html/library/XenForo/Visitor.php(466): XenForo_Application::handlePhpError(1)
#1 /home/cyclechat/public_html/library/XenForo/Visitor.php(421): XenForo_Visitor->setVisitorLanguage(4648, Array)
#2 /home/cyclechat/public_html/library/XenForo/Session.php(204): XenForo_Visitor::setup(Object(Zend_Controller_Request_Http))
#3 /home/cyclechat/public_html/library/XenForo/Controller.php(286): XenForo_Session::startPublicSession('Errornotfound')
#4 /home/cyclechat/public_html/library/XenForo/Controller.php(298): XenForo_Controller->_setupSession('Errornotfound')
#5 /home/cyclechat/public_html/library/XenForo/FrontController.php(309): XenForo_Controller->preDispatch(Object(XenForo_RouteMatch))
#6 /home/cyclechat/public_html/library/XenForo/FrontController.php(132): XenForo_FrontController->dispatch()
#7 /home/cyclechat/public_html/index.php(13): XenForo_FrontController->run()
#8 {main}

Request state:
array(3) {
["url"] => string(50) "http://www.cyclechat.net/forums/cyclechat-cafe.16/"
["_GET"] => array(0) {
}
["_POST"] => array(0) {
}
}

 

[Mike]

That looks like a corrupted language cache to me. Editing a language and re-saving it would fix it.

 

[CTXMedia]

Thanks - seems to have done the trick.