invalid admin section Help

By Kai

Hello

I hope one of you is able to help me. I installed Elgg 1.8.2 on a fresh Ubuntu Server after the installation and the startconfiguration im not be able to configure the site i can only shwitch between the admin and the pluginsite on the other sites I get the error message Invalid Admin section. Anybodie an idea?

 

p.s Im sorry for my terrible english i dont use this language very often