CSS problem?

Hi,

I use W3 Total Cache and WPML and more plugins for my website with Enfold.
I was changing from ‘Page restrict’ plugin to ‘User acces manager’ to restrict access to pages on my site.

Wordpress or the cache or something else caused some problems, I deleted the page restrict plugin but the page stills shows the login form from the Page restrict form, and not from the user access manager.

I decided to clear my cache (browser, and W3 cache) but now it was switching from Page restrict to the 404 not found (but the page does exist). Pressed F5.. Page restrict, pressed F5 again and 404 not found.

I decided to delete the Permalinks from .htaccess and looked if this did help.. No, it didn’t. Then I disabled every cache option in W3, and cleared my cache but still switching.
But when I disabled every cache options, I saw that my website now loads without CSS.. So I decided to enable W3 again, but now my CSS doesn’t show.

What can the problems be? My website: http://www.michael64142.eu (please provide a screenshot how the home looks at you). The restricted page which has the problems: http://www.michael64142.eu/item-support/ (please visit this page to).

Kind Regards,
Michael