Blogs show as "text-only"

Hi,

I have just upgraded to Version 5.

The "recent blog posts" page works just fine. However, if I click into one of the blog posts, all I can see is text. There are no graphics/stylesheets being applied.

Also the comments don't show. And if you click the author link I am getting the following error (Jomsocial is NOT installed on my site):

Warning: require_once(/mysite/components/com_community/libraries/friends.php): failed to open stream: No such file or directory in /mysite/administrator/components/com_easyblog/includes/jomsocial/jomsocial.php on line 69

Could you please have a look?

Thanks,
Uwe