Notice: Undefined property: document::$artist in /var/www/vhosts/ink-d.co.uk/httpdocs/system/app/controllers/home_controller.php on line 819

Notice: Trying to get property of non-object in /var/www/vhosts/ink-d.co.uk/httpdocs/system/app/controllers/home_controller.php on line 819

SQL Error on: SELECT `product`.* FROM `product` WHERE artist_id= AND DontDisplay=0 ORDER BY RAND() LIMIT 1

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 'AND DontDisplay=0 ORDER BY RAND() LIMIT 1' at line 1