Theme scattered css and full page navigation

I updated from the old version of jumla theme to the recent one today and all settings I have done and customized in the previous one totally wiped off and displaying wrongly and text scattered, I reinstalled to the formal same thing I went to the theme editor and saw the theme has been scattered and if I change the theme it still maintains the errors please help me out really

The page I need help with: [log in to see the link]