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 ('ef2f1d5a9a6ac4ef1c1193f778919e45', -1, 1768076733, 1768076733, 'd849d87c', 9, 0, 0)

Line : 187
File : sessions.php