When I enable WP debug more I found the following error http://prnt.sc/dkiqy3
Very likely problem was caused by your cache plugin or its settings. I have deactivated this plugin and updated theme to the latest version. But seems you are using some server cache or something similar because your frontend looks ok only when I change the name of the theme folder.
So, please, clean the cache you use and reply back.
Also, go to Appearance > Widgets and move widgets from Inactive area to appropriate widget area. They are messed up because I have to switch between themes.