Omeka has encountered an error

Zend_Db_Statement_Mysqli_Exception

Mysqli prepare error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.`id` DESC LIMIT 15' at line 3

exception 'Zend_Db_Statement_Mysqli_Exception' with message 'Mysqli prepare error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.`id` DESC LIMIT 15' at line 3' in /var/www/html/projects/russiaglobal/application/libraries/Zend/Db/Statement/Mysqli.php:77
Stack trace:
#0 /var/www/html/projects/russiaglobal/application/libraries/Zend/Db/Statement.php(115): Zend_Db_Statement_Mysqli->_prepare('SELECT `items`....')
#1 /var/www/html/projects/russiaglobal/application/libraries/Zend/Db/Adapter/Mysqli.php(388): Zend_Db_Statement->__construct(Object(Zend_Db_Adapter_Mysqli), 'SELECT `items`....')
#2 /var/www/html/projects/russiaglobal/application/libraries/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Adapter_Mysqli->prepare('SELECT `items`....')
#3 [internal function]: Zend_Db_Adapter_Abstract->query(Object(Omeka_Db_Select), Array)
#4 /var/www/html/projects/russiaglobal/application/libraries/Omeka/Db.php(79): call_user_func_array(Array, Array)
#5 /var/www/html/projects/russiaglobal/application/libraries/Omeka/Db/Table.php(648): Omeka_Db->__call('query', Array)
#6 /var/www/html/projects/russiaglobal/application/libraries/Omeka/Db/Table.php(648): Omeka_Db->query(Object(Omeka_Db_Select), Array)
#7 /var/www/html/projects/russiaglobal/application/libraries/Omeka/Db/Table.php(281): Omeka_Db_Table->fetchObjects(Object(Omeka_Db_Select))
#8 /var/www/html/projects/russiaglobal/application/controllers/CollectionsController.php(47): Omeka_Db_Table->findBy(Array, 15)
#9 /var/www/html/projects/russiaglobal/application/libraries/Zend/Controller/Action.php(516): CollectionsController->showAction()
#10 /var/www/html/projects/russiaglobal/application/libraries/Zend/Controller/Dispatcher/Standard.php(308): Zend_Controller_Action->dispatch('showAction')
#11 /var/www/html/projects/russiaglobal/application/libraries/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#12 /var/www/html/projects/russiaglobal/application/libraries/Zend/Application/Bootstrap/Bootstrap.php(105): Zend_Controller_Front->dispatch()
#13 /var/www/html/projects/russiaglobal/application/libraries/Zend/Application.php(384): Zend_Application_Bootstrap_Bootstrap->run()
#14 /var/www/html/projects/russiaglobal/application/libraries/Omeka/Application.php(77): Zend_Application->run()
#15 /var/www/html/projects/russiaglobal/index.php(23): Omeka_Application->run()
#16 {main}