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 ('ed82f0d0e2096a5d5f677378802feccd', -1, 1490478302, 1490478302, '369287ad', 28, 0, 0)

Line : 187
File : sessions.php