Fatal error: Uncaught Error: Call to undefined function product() in /www/wwwroot/sample.digitanzy.com/app/controllers/productController.php:4 Stack trace: #0 /www/wwwroot/sample.digitanzy.com/config/routing.php(15): require() #1 /www/wwwroot/sample.digitanzy.com/config/routing.php(8): app\aboutusController\routesMappingFunction() #2 /www/wwwroot/sample.digitanzy.com/index.php(5): require('...') #3 {main} thrown in /www/wwwroot/sample.digitanzy.com/app/controllers/productController.php on line 4