Picture of puzzles when entering site (Localhost)

Hi

After some trouble i finally copied my live site to localhost by using the Duplicator plugin.

Now when i try to preview one of my pages, on my localhost website, it shows a picture of puzzles. (See link for example: https://tjepvinduespolering.dk/index.html)

I’m new to wordpress, so i don’t know what to do.

Hope you guys can help.