There seems to be a possible conflict with the 'Report Improvements' addon, as shown with this error:
Code:
Zend_Db_Statement_Mysqli_Exception: Mysqli statement execute error : Prepared statement needs to be re-prepared - library/Zend/Db/Statement/Mysqli.php:214
#0 /home/afellows/public_html/library/Zend/Db/Statement.php(297): Zend_Db_Statement_Mysqli->_execute(Array)
#1 /home/afellows/public_html/library/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#2 /home/afellows/public_html/library/XenForo/Model.php(219): Zend_Db_Adapter_Abstract->query('\n SE...', Array, 2)
#3 /home/afellows/public_html/library/NixFifty/Tickets/Model/Ticket.php(177): XenForo_Model->fetchAllKeyed('\n SE...', 'ticket_id')
#4 /home/afellows/public_html/library/NixFifty/Tickets/Model/Ticket.php(1303): NixFifty_Tickets_Model_Ticket->getActiveTickets(Array)
#5 /home/afellows/public_html/library/NixFifty/Tickets/Listener.php(51): NixFifty_Tickets_Model_Ticket->getActiveTicketCountsForUser()
#6 [internal function]: NixFifty_Tickets_Listener::controllerPreDispatch(Object(SV_ReportImprovements_XenForo_ControllerPublic_Attachment), 'Index', 'XenForo_Control...')
#7 /home/afellows/public_html/library/XenForo/CodeEvent.php(58): call_user_func_array(Array, Array)
#8 /home/afellows/public_html/library/XenForo/Controller.php(313): XenForo_CodeEvent::fire('controller_pre_...', Array, 'XenForo_Control...')
#9 /home/afellows/public_html/library/XenForo/FrontController.php(350): XenForo_Controller->preDispatch('Index', 'XenForo_Control...')
#10 /home/afellows/public_html/library/XenForo/FrontController.php(134): XenForo_FrontController->dispatch(Object(XenForo_RouteMatch))
#11 /home/afellows/public_html/index.php(13): XenForo_FrontController->run()
#12 {main}