Yes, it helped! ;)

Here i found subject on bug tracker: Bug 19400

Oops. didn't noticed before.
Thank You!

Does any body knows how to solve it or it is just bug on my server?

Hello!
We had ZCS5 installation and php webpage worked trough SOAP interface with zimbraAdmin class (ftp://ftp.rongage.org/pub/zimbraAdmin/).
Now, after moving to ZCS6 i decided to extended...