phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './tripleac_Forum/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 ('6a4cae681679e5f01a3a658c6717df89', -1, 1462271586, 1462271586, '369113f5', -1, 0, 0)

Line : 187
File : sessions.php