Thanks for updating the thread.
I wanted to check your header and I am unable to access the same. Under Pro menu I only see Validation and Email Forms. I don't see header and footer builder option. It seems that the Pro Theme is broken on your website. I also see another Pro Theme menu in the backend which has header and footer builder menu.
Along with that I don't see many of the settings and options in Header builder editor. To me it seems that the installation is broken. In that regards I suggest you to first re-install Pro Theme properly and use the most recent version of Pro Theme.
To fix the broken installation, please refer following resources.
Version compatibility guide: To learn about the latest and compatible versions of bundled and supported plugins, please take a look at following doc:
2. Theme Update guide: Please take a look at following article to update Cornerstone.
3. Theme installation guide:
4. Please take a look at following doc about changelog:
Let us know how it goes.