Upgrade Errors

I just upgraded my Omeka site which was heavily customized. Now, the theme isn't working stylistically with my site. I can't figure out how to customize the new Thanks, Roy theme. I tried to revert back to my old database and my old installation but now my site isn't even loading. Any ideas?

This is another site with the same customizations:

At this point, I would like the new features, but can't risk the design errors.


Issue resolved by reinstalling the applications folder from another instance of the older version.