Fatal error: Uncaught Exception: Error: Unknown column 'md.qty' in 'field list'<br />Error No: 1054<br />SELECT *, md.qty as quantity FROM `oc_manufacturer_discount` md INNER JOIN `oc_manufacturer` m ON md.manufacturer_id = m.manufacturer_id WHERE md.status = '1' AND md.manufacturer_id = '0' AND md.customer_group_id = '1' AND ((md.date_start = '0000-00-00' OR md.date_start < NOW()) AND (qty = '0' OR qty = '1') AND (md.date_end = '0000-00-00' OR md.date_end > NOW())) ORDER BY md.qty ASC, md.percentage ASC LIMIT 1 in /home/nz0104/public_html/system/library/db/mysqli.php:40 Stack trace: #0 /home/nz0104/public_html/system/library/db.php(45): DB\MySQLi->query('SELECT *, md.qt...') #1 /home/nz0104/public_html/catalog/model/extension/module/discount.php(734): DB->query('SELECT *, md.qt...') #2 /home/nz0104/public_html/catalog/model/extension/module/discount.php(686): ModelExtensionModuleDiscount->getDiscountsSpecialPrice('637', '1') #3 /home/nz0104/public_html/vqmod/vqcache/vq2-_home_nz0104_depo_modification_system_engine_loader in /home/nz0104/public_html/system/library/db/mysqli.php on line 40