title: all the theme of moodle not working
body: <p>I have a big problem with theme in moodle site(version 2.2). </p>
  
  <p>I wanted to change some menus and colors and another things in the site theme, so I turned on the server maintenance mode and Theme designer mode.</p>
  
  <p>All that operations disabled the theme. I tried to turn off those choices but nothing happened, the site is still without any theme. I tried to change the theme, but all the themes are not working.</p>
  
  <p>What happened please, how can i solve that?</p>