Not working wigh Phoca - by: Arthur Klisiewicz

Installed component and changed setting to PhocaGallery.
I followed the tutorial to allow upload images for newly created group.
Installed Andorid App, but when I try to open the categories OR upload images I get error message:

"Use valid name and password..."

I'm sure I use valid name/password, so what am I doing wrong ?
Ohh. I've forgotten to mention it works fine when I login as Superuser, but any other user fails.

Arthur