phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './shelter/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6365d5540d0c1e0167e9402286cf3e67', -1, 1495529647, 1495529647, '36a26067', 11, 0, 0)

Line : 187
File : sessions.php