Reply To: When I want to login, the page cannot be displayed.

Hello,

Please make the full backup of your site and check the issue on the Storefront theme to detect if our theme causes the problem. Storefront is a free theme developed by WooСommerce.

If you see the same on the Storefront theme, please check this manual: https://woocommerce.com/document/woocommerce-pages/

If you have any questions please feel free to contact us.

Best Regards