Can not set Page as current Homepage please HELP!

Hello,
ich want to set my Page as a current homepage but it’s not working? How can I fix this? you can see what I mean in the picture below. I cant move it to the top?


Here is my public share link: LINK
(how to access public share link)

You have to set an alternate page as the home page as described in this University article.

Thank you very much. Now its working!