Interaction error after going back

Hi everyone, im creating my portfolio and im almost done, when i click on the images i go to the CMS projects that i created but when i click in my go back link (to the home page) its bring me to the home page but the interaction of the about link don’t work. when the page load the first time works perfect but when i enter in a project and go back i don’t know what happen. (see video below).

Also i attached my public link.

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

I would be really grateful if anyone could help guide me regarding this issue. Thanks!