What am I missing? Not working at all.

I tried on two new WordPress sites, using the standard WordPress theme, and nothing is showing up on the front end.

I checked the instructions, it doesn’t say to do anything special. Do you just add it as a block? I did that. Just seeing a blank space.

Do I have to have a certain amount of photos as a minimum maybe? I don’t know. I’m running out of ideas… I really want to use this.