Fatal error: Uncaught Exception: Error: Unknown column 'pa.author_id' in 'where clause'<br />Error No: 1054<br />SELECT COUNT(DISTINCT p.product_id) AS total FROM oc_product p LEFT JOIN oc_product_description pd ON (p.product_id = pd.product_id) LEFT JOIN oc_product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '1' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '0' AND pa.author_id = '4635' AND pa.author_id<>'0' in /home/vipulmadhani/public_html/vqmod/vqcache/vq2-system_library_db_mysqli.php:47 Stack trace: #0 /home/vipulmadhani/public_html/vqmod/vqcache/vq2-system_library_db.php(22): DB\MySQLi->query('SELECT COUNT(DI...', Array) #1 /home/vipulmadhani/public_html/system/storage/modification/catalog/model/catalog/product.php(683): DB->query('SELECT COUNT(DI...') #2 /home/vipulmadhani/public_html/system/vendor/multimerchlib/module/autogenerated/system/engine/oc_loader-2.3.php(179): ModelCatalogProduct->getTotalProducts(Array) #3 /home/vipulmadhani/public_html/system/engine/proxy in /home/vipulmadhani/public_html/vqmod/vqcache/vq2-system_library_db_mysqli.php on line 47