Strange configuration view bug

[Maede]

I installed the newest virtuemart on a 2.5.19 Joomla site and after installing the german language pack and after klicking on (I think) Live uptade on AIO I got a corrupted configuration view:


The whole backend is still in english, not in german. Rest of the website is in german. I never had this problem on earlier virtuemart versions.
Any suggestions?

[Maede]

I also could not save anything with the virtuemart 2.6 version i got

vmError: VmTableData Sef Alias in record is missing! Can't save the record with no Sef Alias.

on everything I wanted to save, like product or category.

So I went back to virtuemart 2.0.24b and everything works fine from the beginning, all in german and no error messages.
Seems like this 3.6 Version is mostly unusuable and buggy if ur unlucky.