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 ('19426a9b8391954f4d278577328730a4', -1, 1555613654, 1555613654, '12d79f9c', -9, 0, 0)

Line : 187
File : sessions.php