Bundled Products Woocommerce

Hi. I created a custom single template for woocommerce products. I install this plugin WPC Grouped Product for WooCommerce - WPClever to enabled product bundles. I created a product that is bundled type but when i view on the single template I created i cannot add to card. the button was disabled even though there is stock available.Maybe it is compatibility issue? When i use default woocommerce template for single product i can add to cart the bundle product.