Using quote buttons with Divi theme

I use the Divi theme on my website. I installed the YITH WooCommerce Request a Quote plugin and selected to show the quote button next to the cart button but nothing is happening on the front side.

This is how it looks in settings: https://www.screencast.com/t/EgbHDa7xe
This is how it looks in front-end: https://www.screencast.com/t/exV21LdqWx

Is this plugin compatible with Divi themes? If so, how can I add the quote button to product pages?