Universal filter only shows ALL but none of the tags

4 hours ago, WalidAlWawi said:

I am trying to creat a library where books are filters by category, for that I am using image gallery simple grid.

Ive done all the steps to install the filter and added a <span> tag to some photos.

But the only tag that shows is all. 

You can get reference here: Squarespace Filter Plugin - Universal Filter (squarewebsites.org)