Please help solve this problem, I am getting an error like below, i upgraded from v2.6.1 to 2.6.4
SELECT tutorials_posts_access, tutorials_othermems, tutorials_copy, tutorials_tutorializepost, tutorials_viewreaders, tutorials_view FROM `tutorials_groups` WHERE tutorials_g_id=4
IPS\Db\Exception: Table 'yorubaso_focuslinks.tutorials_groups' doesn't exist (1146)
#0 /home/yorubaso/focuslinksforum.com/system/Db/Select.php(388): IPS\_Db->preparedQuery('/*yorubaso_focu...', Array, true)
#1 /home/yorubaso/focuslinksforum.com/system/Db/Select.php(446): IPS\Db\_Select->runQuery()
#2 /home/yorubaso/focuslinksforum.com/system/Db/Select.php(370): IPS\Db\_Select->rewind()
#3 /home/yorubaso/focuslinksforum.com/applications/tutorials/sources/Members/Members.php(43): IPS\Db\_Select->first()
#4 /home/yorubaso/focuslinksforum.com/applications/tutorials/Application.php(12): IPS\tutorials\_Members::getGroupData(4)
#5 /home/yorubaso/focuslinksforum.com/system/Dispatcher/Standard.php(210): IPS\tutorials\_Application->init()
#6 /home/yorubaso/focuslinksforum.com/system/Dispatcher/Front.php(109): IPS\Dispatcher\_Standard->init()
#7 /home/yorubaso/focuslinksforum.com/init.php(927) : eval()'d code(52): IPS\Dispatcher\_Front->init()
#8 /home/yorubaso/focuslinksforum.com/system/Dispatcher/Dispatcher.php(110): IPS\Dispatcher\indisposable_hook_C_DispatcherFront->init()
#9 /home/yorubaso/focuslinksforum.com/index.php(13): IPS\_Dispatcher::i()
#10 {main}