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 ('d6bf1bac461b1d246e832c04c4b30f54', -1, 1771168671, 1771168671, 'd849d871', 1, 0, 0)

Line : 187
File : sessions.php