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 ('b63505bb74f563e7b9acc23caf56d757', -1, 1555676947, 1555676947, '035a0c70', 0, 0, 0)

Line : 187
File : sessions.php