button disapear

Hello i try this plugin is the only that works with my theme Jupiter but something weird happend when i click the quick view button the product show without problem and i select from 3 variables 2 of this variables affect the price and when i select the variables for example size and color the add to cart button show and instantly disappears the url of my page is mamillas.com hope you can help me you are my last chance

https://ww.wp.xz.cn/plugins/formula04-woocommerce-quick-window/