I switched over to Ubuntu and made a complete reinstall. Everything works fine now.

I think that there's a config or right problem. I put in every possible config field some letters but the files like ajenti-v-php-fcgi-c5-php-fcgi-0.sock were empty.

I also get an error when I try to access files over the File Manger "[Errno 6] No such device or adress u'/var/run/ajenti-v-php-fcgi-c5-..."