Need Help Editing Image Description Text for Pins

Hello,

I cannot figure out how to edit the text that pops up for the image description when you click on the “pin it” button for an image. The text defaults to the original post header for some reason and I can’t figure out why or how to edit this. Help would be greatly appreciated!

Website url: https://www.decorotation.com

Thanks so much!

-Brett

https://www.ads-software.com/plugins/pinterest-pin-it-button-for-images/