DB Error: Unknown column 'submission_id' in 'where clause'

Stack Trace:

File: /home/mjifkui/public/journal/lib/pkp/classes/db/DAO.inc.php line 200
Function: DAO->retrieve("SELECT * FROM citations WHERE submission_id = ? ORDER B...", Array(1), False)

File: /home/mjifkui/public/journal/lib/pkp/classes/citation/CitationDAO.inc.php line 118
Function: DAO->retrieveRange("SELECT * FROM citations WHERE submission_id = ? ORDER B...", Array(1), Null)

File: /home/mjifkui/public/journal/pages/article/ArticleHandler.inc.php line 169
Function: CitationDAO->getBySubmissionId("396")

File: /home/mjifkui/public/journal/lib/pkp/classes/core/PKPRouter.inc.php line 390
Function: ArticleHandler->view(Array(0), Object(Request))

File: /home/mjifkui/public/journal/lib/pkp/classes/core/PKPPageRouter.inc.php line 231
Function: PKPRouter->_authorizeInitializeAndCallRequest(Array(2), Object(Request), Array(1), False)

File: /home/mjifkui/public/journal/lib/pkp/classes/core/Dispatcher.inc.php line 134
Function: PKPPageRouter->route(Object(Request))

File: /home/mjifkui/public/journal/lib/pkp/classes/core/PKPApplication.inc.php line 252
Function: Dispatcher->dispatch(Object(Request))

File: /home/mjifkui/public/journal/index.php line 68
Function: PKPApplication->execute()