phpBB : Critical Error

Error doing DB query userdata row fetch

DEBUG MODE

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

SELECT u.*, s.* FROM phpbb_sessions s, phpbb_users u WHERE s.session_id = 'a109cdb33538e53c22b0a7f730a7ca55' AND u.user_id = s.session_user_id

Line : 345
File : sessions.php