Hi @rodoyo,
The Continue Shopping
button should still be present in WooCommerce 3.6 – here is how it looks on my site:
Screenshot: https://cld.wthms.co/g9tZzI
I just checked the product page you’ve linked to, and I can see the customers are not being redirected to the cart page at all–and this button only shows on that page. To redirect your users to cart after they’ve added some product, you can enable the following option under WooCommerce > Settings > Products:
Screenshot: https://cld.wthms.co/TRUZHb
If this doesn’t help, you can try switching to a default theme and disabling all plugins except for WooCommerce as a test, as @serafinnyc mentioned in his message.
Cheers!