Add To Cart event when I don't have Add To Cart

Hi there, I set up BUY NOW only button to improve my conversion removing “Add To Cart” button, but nevertheless I have “Add To Cart” event in analytics dashboard (without “initiated checkout”). What’s wrong?

Would appreciate any thoughts!

Hi, please share your store url

Here it is http://bit.ly/2YeCAve thanks

Though, I suspect, it’s because BUY NOW takes some time to replace Add To Cart. But I still don’t know why it delays.