First Time Attempting; using Freeware app for build. Red X's everywhere.

I'm using a wonderful tutorial by Kevin Colligan that is teaching me to make a cookie matching game. I'm basically doing this to make my sick mother a game, and she loves puzzlers, and asked for one specifically.

The problem I'm having is that there is a layer of red X's behind my pieces that obscure the view of the pieces so that the game is basically unplayable. I've spent the day making art assets and getting them to the right size, and basically swapping them out to keep it easy on myself. I'm not a coder yet.

I don't know why Wordpress links are uncool but I can upload the issue to YouTube if they pass through.

Thanks for any and all help.