Clicking link changes url in browser bar, but doesn't actually load URL

Clicking link changes url in browser bar, but doesn’t actually load URL. I have to hit ‘enter’ to actually visit the new URL. I just updated a new theme on the site and everything has transferred over great except the ability to navigate my site with a click of a button.

Basically, I click on a page (ie: “About”) and the url changes to https://—–/about but doesn’t actually load the page until I hit ‘enter’.

Could someone please assist me with this? I have researched and have not found an answer. Thank you very much.