phpBB : Critical Error

Error doing DB query userdata row fetch

DEBUG MODE

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

SELECT u.*, s.* FROM sessions s, users u WHERE s.session_id = 'a27527a2c9ea8b6e5bdc7e50b145eca6' AND u.user_id = s.session_user_id

Line : 315
File : sessions.php