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 ('4677d4d2726b39c846072eb9071b7789', -1, 1490533561, 1490533561, '36a618b5', 1, 0, 0)

Line : 187
File : sessions.php