Why does WordPress display Woocommerce pages as blank?

Question

WooCommerce

Hi created a new clean theme. Installed WooCommerce. If I put pages WooCommerce( Shop ) for example as the main page. It's just a blank page. I created a WooCommerce folder where I put files, for example single-product.php - unfortunately unchanged - a white page. It does not give an error, it opens, in the title page there is the name of the page loc/product/nazvanya-producta