Ecshop Vietnam Application Error

The application could not run because of the following error:

Type: MySQL Query Error

Message: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '.attr('href')+''' at line 1

SQL: SELECT id, module FROM `zkcvvokh_farm`.`ecsvn_slug` WHERE slug = ''+item.find('.name').attr('href')+''

Code: 1064