phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 144 Table './mtforg_m2/classico1991_phpbb_sessions' is marked as crashed and last (automatic?) repair failed

INSERT INTO classico1991_phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, is_robot) VALUES ('e0a8ec7c1179787bfcc7f8bb6ec09c89', -1, 1518999338, 1518999338, '369f1e1a', 0, 0, '0', '0')

Line : 175
File : sessions.php