@monTFury Thanks for checking on the details of the theme. Taking another look at the URL you sent in the Chrome developer tools, it seems that there is some code that is interfering with your navigation. It looks like it could be code that was added into the theme manually or an app that was recently installed. I'm not able to see more than that without authenticating your account. Since it's a third party theme, this is beyond the scope of what Shopify support can assist with. However, there are a few things you can do to correct this.
First thing that can help is to check on any apps that you've recently installed in case any of those have automatically modified your theme in any way.
The second thing you can do is physically check the code in your theme by going to Online Store > Themes > Actions > Edit Code. In this page you'll want to look out for any theme files that have a purple dot next to them. It'll look like this:
This dot indicates any code that was edited from the original theme code. You can revert that file to a previous version using the action shown in this screenshot:
When you click on that "Older versions" action it will give you a drop-down to select a previous version of the code to revert it back.
Lastly, if you'd like a bit more hands-on help, you can certainly reach out to the developer of your theme or one of the app developers for the third-party app you've installed.