phpBB : Critical Error

Error doing DB query userdata row fetch

DEBUG MODE

SQL Error : 145 Table './nedly_phpbb1/phpbb_users' is marked as crashed and should be repaired

SELECT u.*, s.* FROM phpbb_sessions s, phpbb_users u WHERE s.session_id = 'ebb7a3b50ac280b50ecf516a517b69b0' AND u.user_id = s.session_user_id

Line : 247
File : /home/nedly/public_html/phpBB/includes/sessions.php