Website Critical Error

Error doing DB query userdata row fetch

DEBUG MODE

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

SELECT u.*, s.* FROM phpbbfm_sessions s, phpbbfm_users u WHERE s.session_id = '571e1f0be19e614ce42b5cd3cf5d833f' AND u.user_id = s.session_user_id AND session_time > 1686098550

Line : 358
File : sessions.php