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 ('1f1f8c7715d351bd19bf0a8bb907de29', -1, 1789100039, 1789100039, 'd849d900', -10, 0, 0)

Line : 187
File : sessions.php