Bug in RPM scripts

[Aredridel]

This will be fun to solve ... any ideas?

There are 11 packages to remove:
R Zope-Formulator-1.6.2-1, Zope-PortalTransforms-1.0.4-1,
R Zope-ExternalEditor-0.8-1, Zope-BTreeFolder2-1.0.1-1,
Zope-CMF-1.4.7-1,
R Zope-CMFQuickInstallerTool-1.5.0-3, Zope-archetypes-1.2.5-0.rc5.1,
R Zope-CMFPlone-2.0.4-2, Zope-Epoz-0.8.4-1, Zope-GroupUserFolder-3.1-1,
R Zope-2.7.2-3
Proceed? [y/N]
Running sudo /bin/rpm --erase --root /...
Stopping Zope service..............................................[
WORK ]
Stopping Zope instance main........................................[
DONE ]
Stopping Zope service..............................................[
DONE ]
/var/tmp/rpm-tmp.91262[5]: /usr/lib/rpm/user_group.sh: not found
/var/tmp/rpm-tmp.91262[5]: /usr/lib/rpm/user_group.sh: not found
error: %postun(Zope-2.7.2-3) scriptlet failed, exit status 127
/var/tmp/rpm-tmp.91262[7]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.75575[7]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.31991[9]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.31991[9]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.31991[9]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.31991[9]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.31991[9]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.58379[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.58379[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.58379[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.93887[7]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.59228[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.59228[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.59228[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.59228[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.59228[5]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.44910[7]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.44910[7]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.26040[7]: /usr/sbin/installzopeproduct: not found
/var/tmp/rpm-tmp.48347[7]: /usr/sbin/installzopeproduct: not found
poldek:/all-avail>