phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './ultimate/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 ('c2f15fb79c4b6a47df28d2c2c3b9a475', -1, 1555814634, 1555814634, '0354b670', -1, 0, 0)

Line : 187
File : sessions.php