08CMS Info: MySQL Query Error

Time: 2013-4-24 17:03
SQL: SELECT COUNT(*) FROM cms_coclass WHERE status='1' AND {$pre}prices = '0' AND level=2 AND coid=1 AND closed=0
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 '}prices = '0' AND level=2 AND coid=1 AND closed=0' at line 1
Errno.: 1064