XF 1.3 Server errors listed in Admin Control Panel

[1361]

Hello, I am getting two different server errors.
1.
#0 /var/www/virtual/worksafe.is/htdocs/library/Zend/Db/Statement.php(115): Zend_Db_Statement_Mysqli->_prepare('?????SELECT thr...')
#1 /var/www/virtual/worksafe.is/htdocs/library/Zend/Db/Adapter/Mysqli.php(381): Zend_Db_Statement->__construct(Object(Zend_Db_Adapter_Mysqli), '?????SELECT thr...')
#2 /var/www/virtual/worksafe.is/htdocs/library/Zend/Db/Adapter/Abstract.php(478): Zend_Db_Adapter_Mysqli->prepare('?????SELECT thr...')
#3 /var/www/virtual/worksafe.is/htdocs/library/XenForo/Model.php(219): Zend_Db_Adapter_Abstract->query('?????SELECT thr...', Array, 2)
#4 /var/www/virtual/worksafe.is/htdocs/library/XenForo/Model/Thread.php(527): XenForo_Model->fetchAllKeyed('?????SELECT thr...', 'thread_id')
#5 /var/www/virtual/worksafe.is/htdocs/library/XenForo/Model/Thread.php(608): XenForo_Model_Thread->getThreads(Array, Array)
#6 /var/www/virtual/worksafe.is/htdocs/library/XenForo/ControllerPublic/Forum.php(123): XenForo_Model_Thread->getThreadsInForum(10, Array, Array)
#7 /var/www/virtual/worksafe.is/htdocs/library/Waindigo/AnonymousPosts/Extend/XenForo/ControllerPublic/Forum.php(49): XenForo_ControllerPublic_Forum->actionForum()
#8 /var/www/virtual/worksafe.is/htdocs/library/CTA/FeaturedThreads/ControllerPublic/Forum.php(76): Waindigo_AnonymousPosts_Extend_XenForo_ControllerPublic_Forum->actionForum()
#9 /var/www/virtual/worksafe.is/htdocs/library/XenForo/FrontController.php(347): CTA_FeaturedThreads_ControllerPublic_Forum->actionForum()
#10 /var/www/virtual/worksafe.is/htdocs/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#11 /var/www/virtual/worksafe.is/htdocs/index.php(13): XenForo_FrontController->run()
#12 {main}
Request State
array(3) {
["url"] => string(52) "http://worksafe.is/forums/announcements.10/index.rss"
["_GET"] => array(0) {
}


And the second
#0 /var/www/virtual/worksafe.is/htdocs/library/XenForo/Model/Forum.php(336): XenForo_Application::handlePhpError(8, 'Undefined index...', '/var/www/virtua...', 336, Array)
#1 /var/www/virtual/worksafe.is/htdocs/library/XenForo/Model/Thread.php(1514): XenForo_Model_Forum->canViewForumContent(Array, NULL, Array, Array)
#2 /var/www/virtual/worksafe.is/htdocs/library/Waindigo/ForumDigest/Extend/XenForo/ControllerPublic/Forum.php(181): XenForo_Model_Thread->prepareThread(Array, Array, Array)
#3 /var/www/virtual/worksafe.is/htdocs/library/CTA/FeaturedThreads/ControllerPublic/Forum.php(7): Waindigo_ForumDigest_Extend_XenForo_ControllerPublic_Forum->actionIndex()
#4 /var/www/virtual/worksafe.is/htdocs/library/XenForo/FrontController.php(347): CTA_FeaturedThreads_ControllerPublic_Forum->actionIndex()
#5 /var/www/virtual/worksafe.is/htdocs/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#6 /var/www/virtual/worksafe.is/htdocs/index.php(13): XenForo_FrontController->run()
#7 {main}
Request State
array(3) {
["url"] => string(19) "http://worksafe.is/"
["_GET"] => array(0) {
}
["_POST"] => array(0) {
}
}

I am pretty sure both will need to be taken up with my host. However, I don't really know what these mean. Is there anything in particular I should mention?

 

[Paul B]

They appear to be add-on related.
I can see a few add-ons listed.

Disable all add-ons and then enable them one at a time until the errors occur.
That will determine which one it is.

The add-ons you need to focus on are Anonymous Posts, Forum Digest and Featured Threads.

 

[Mike]

Additionally, you've cut off the actual error message (just including the backtrace). If the problem persists without add-ons, can you include that?