Git hub page looks not like on my local port

Greetings Everyone… :wave:
I’m Having a problem I spend over 2 hours trying to solve it but I couldn’t …

I uploaded a new repository project through GitHub application on my computer then I tried to activate the GitHub page for this project.
when I open it the site it was broken looks not like on my local port…
here’s the the screen shot for the project :

this project looks on my local port