Infinit Shopify theme bug

hi there,

im using Infinit fashion megastore theme, in the product page, when user change color or variant, the price duplicate itself, this example will explain it better
https://camo.githubusercontent.com/f6c2efef30fd22cee871b79976879e37c7eab8eb/68747470733a2f2f692e6962622e636f2f307272427872432f70726963652e706e67

Contact theme author for the support

how i can find the theme author?