Floating "Buy Now" Button

Don’t roast me, I’m new to this, but I’ve already tried looking it up. All I can find is talk about the buy now button on the checkout page for the cart. The button I’m talking about is a floating button on all pages and it has the Envato leaf logo on it.

I purchased the theme from someone on Etsy and he won’t return any of my messages, so I did a little research and found the logo belonged to Envato… so here I am!

Does anyone have a clue how to get rid of that button? All it does is takes you back to the home page if you press it, but it’s annoying.

Find the theme and purchase it from the original author while reporting the violation to ETSY