Pages user site not published

hey i also have a problem with it.
for some reason the website is published but i open only the background.
the whole content is not visible.
can someone tell me why,
i figured that when i add the string "homepage " the app isn’t working well and the content isn’t presented.

I solved this problem by changing this.

Default selection for Branch is None. You have to change it to main

https://vedurumudi-priyanka.github.io/Data-Visualisation/
my repo is not publishing.
repo: GitHub - Vedurumudi-Priyanka/Data-Visualisation