phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './myforum/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 ('4e2f6fda1431dd4ee0b474c94ac78a9d', -1, 1771105505, 1771105505, 'd849d871', 10, 0, 0)

Line : 187
File : sessions.php