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 ('d87d2106f0b87e79d3b63a29b9098c62', -1, 1555865907, 1555865907, '36e249ff', -1, 0, 0)

Line : 187
File : sessions.php