Trying to display the right content (CMS)

Hello community, I’m working on a new project, and for some reason, it’s not displaying the project details correctly for me. What am I doing wrong? Because the URL is correct, but it only displays the content of one project for all of them.

Here is the project.

Thank you very much, Michael. I was getting quite confused, but your video has made it clear for me, and I’m sure I won’t forget it now, hehehe. Greetings from Spain!