Thanks for asking.
If the layout is broken then most probably style.css file not present on the server. I tried checking the websites listed on the licence page and one website is working fine but the staging website is redirecting to login page. So I am not able to check the exact issue. Please try out following solutions.
- Please try deleting current package of Pro Theme from Appearance > Themes. After that try installing latest version of Pro Theme. Please follow following article to install Pro Theme.
2. Test for a plugin conflict. You can do this by deactivating all third-party plugins, and see if the problem remains. If it's fixed, you'll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.
Let us know how it goes.