Fatal error: Uncaught exception 'Exception' with message 'Error: Unknown column 'product_id' in 'where clause'<br />Error No: 1054<br />SELECT * FROM `subhe_course_module` WHERE product_id = '63' ORDER BY `module_id` ASC' in /home/subhe/public_html/system/library/db/mysqli.php:40 Stack trace: #0 /home/subhe/public_html/system/library/db.php(16): DB\MySQLi->query('SELECT * FROM `...', Array) #1 /home/subhe/public_html/catalog/model/catalog/product.php(581): DB->query('SELECT * FROM `...') #2 [internal function]: ModelCatalogProduct->getProductModules(63) #3 /home/subhe/public_html/system/engine/loader.php(178): call_user_func_array(Array, Array) #4 [internal function]: Loader->{closure}(Array, Array) #5 /home/subhe/public_html/system/engine/proxy.php(25): call_user_func_array(Object(Closure), Array) #6 /home/subhe/public_html/catalog/controller/product/product.php(159): Proxy->__call('getProductModul...', Array) #7 /home/subhe/public_html/catalog/controller/product/product.php(159): Proxy->getProductModules(63) #8 [interna in /home/subhe/public_html/system/library/db/mysqli.php on line 40