phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './forum/phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('622def915002462203d3f1762a88c8a2', -1, 1555661962, 1555661962, '36e249ff', 0, 0, 0)

Line : 187
File : sessions.php