Overlay page doen't work

[juan casal]

I have this website www.juancasal.com the has an overlay page "About".
It always worked fine, but today I entered the site and it didn't work anymore. It works as a regular page on desktop but works fine on mobile. I didn't modify anything at all.
How could I solve this issue?

[arminunruh]

it works for me when i click on "about"

[juan casal]

I fixed it on my own!
I just did a new page and made it all over again and worked fine.
Sorry I didn't delete the post.