Fatal error: Call to a member function on a non-object in htmlgen.php

[pchytil@asp.ogi.edu]

Hi,

my system runs Linux RH 7.1. Horde/IMP seems to be working fine I have
everything from CVS (7.23.01). if I run
http://mysystem.com/horde/jonah/backend.php?mode=update

I am getting updates for rss like:

Updating Slashdot... saved local copy of http://slashdot.org/slashdot.rdf.
Updating RootPrompt... saved local copy of http://www.rootprompt.org/rss/.
Updating Wired News... saved local copy of
http://www.wired.com/news_drop/netcenter/netcenter.rdf.
.
.
but then:
.Generating html for Slashdot...
Fatal error: Call to a member function on a non-object in
/usr/local/apache/html/horde/jonah/lib/htmlgen.php on line 63

Thanks,
      Pavel