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 ('68ddfc0e84ae861143e50de2761927cb', -1, 1490505979, 1490505979, '36cc4713', -1, 0, 0)

Line : 187
File : sessions.php