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 ('908828b7579a15f51afd0112f4fd6457', -1, 1490547286, 1490547286, '36c54a89', -4, 0, 0)

Line : 187
File : sessions.php