Database Error

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-sessions WHERE (bk-sessions.id = '4443e8l79loatt92ma2m4p7tq1') ORDER BY bk-sess' at line 2
SELECT bk-sessions.data
FROM bk-sessions
WHERE (bk-sessions.id = '4443e8l79loatt92ma2m4p7tq1')
ORDER BY bk-sessions.id


Array
(
    [:id] => 4443e8l79loatt92ma2m4p7tq1
)
#0 /data/home/bxu2359030046/htdocs/includes/class/SQL.php(220): Query->__construct(Object(SQL), 'SELECT bk-sessi...', Array, false)
#1 /data/home/bxu2359030046/htdocs/includes/class/SQL.php(257): SQL->query('SELECT __sessio...', Array, false)
#2 /data/home/bxu2359030046/htdocs/includes/class/Session.php(38): SQL->select('sessions', 'data', Array, 'id')
#3 [internal function]: Session::read('4443e8l79loatt9...')
#4 /data/home/bxu2359030046/htdocs/includes/helpers.php(37): session_start()
#5 /data/home/bxu2359030046/htdocs/includes/common.php(270): session()
#6 /data/home/bxu2359030046/htdocs/index.php(5): require_once('/data/home/bxu2...')
#7 {main}