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 ('d96c4b391e452bca36afc0d8629c6a49', -1, 1490485236, 1490485236, '369dd221', 4, 0, 0)

Line : 187
File : sessions.php