phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_mw_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7ef41d931a3c2b6c464007ca36e587c0', -1, 1490477651, 1490477651, '369287ad', -1, 0, 0)

Line : 187
File : sessions.php