phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './mopo_phpbb1/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c719870b5eeba370c28f35ee1006b662', -1, 1409718852, 1409718852, 'ae813e7e', 18, 0, 0)

Line : 191
File : sessions.php