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 ('a6e7d236547787b44d97b938d91a7d14', -1, 1555900381, 1555900381, '365a56e7', 31, 0, 0)

Line : 187
File : sessions.php