Issue with ZIP files

Hi! First, I love this plugin. There is nothing out there like it!

I am having issues with it though. When the downloaded ZIP file expands, it produces another compressed .CPGZ file instead of the folder of images. Please help!

You can see how it works here (the download button is at the bottom of the page): https://www.filmlb.com/blair-field-minor-league-baseball/

Thank you!