GOSA not accepting user-photo

[Frank Weißer <linux@weisser-ol.de>]

Hi

I'm running a jessie-tjener+workstation (w/o ltsp)
latest updates/upgrades are made

i try to give my users a photo in gosa.
after uploading and seing the image in user-configuration i get
> Schwerer Fehler: kann Klasse Imagick nicht instanziieren - bitte führen Sie update-gosa aus um das Problem zu beheben

when trying to save changes.

#update-gosa
doesn't help

I have

# cat /etc/debian_version
8.0

# cat /etc/debian_version
8.0
root@tjener:~# cat /etc/debian-edu/config
# Generated by debian-edu-profile-udeb
VERSION="8.0+edu0~beta1"
PROFILE="Main-Server, Workstation"
LANGCODE="de"
LOCALE="de_DE.UTF-8"
TESTINSTALL="true"

installed appr. on Mar.25th with actual image from

> ftp://ftp.skolelinux.no/cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-1.iso

readU
Frank