phpBB : Critical Error

Error doing DB query userdata row fetch

DEBUG MODE

SQL Error : 145 Table './forum/phpbb_users' is marked as crashed and should be repaired

SELECT u.*, s.* FROM phpbb_sessions s, phpbb_users u WHERE s.session_ip = '36a63ee2' AND s.session_user_id = -1 AND u.user_id = s.session_user_id LIMIT 0, 1

Line : 416
File : sessions.php