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 ('d03b5a8a531094fb9b4b691bb2f12065', -1, 1490421046, 1490421046, '3657418c', 1, 0, 0)

Line : 187
File : sessions.php