Looks like this function croaked (see below for traceback):

package RHN::DB::Package;

...

# given varying data, try to figure what freakin' package to load.
# NOTE:  Might I say, this sucketh much donkey wong.  Awaiting a better # answer :(
sub guestimate_package_id {

....

  } else {
    croak "not enough information to make a guess about what package you're
looking for!";
  }
}

is this expected during normal operation?  What could you do in the UI to cause
this error? 

From a traceback:

Contents of this Digest Volume 2005-01-31 19:00

 WEB TRACEBACK from rhnserver1.app.phx.redhat.com (Mon Jan 31 18:59:10 2005)


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Date: Mon, 31 Jan 2005 18:59:10 -0500
Message-Id: <200501312359.j0VNxA614473@rhnserver1.app.phx.redhat.com>
To: rhn-traceback@rhn.redhat.com
From: Red Hat Network <dev-null@rhn.redhat.com>
Subject: WEB TRACEBACK from rhnserver1.app.phx.redhat.com (Mon Jan 31 18:59:10 2005)
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X-RHN-Traceback-Severity: unhandled
Reply-to: rhn-traceback@redhat.com

The following exception occured while executing this request:
 GET /network/software/packages/file_list.pxt HTTP/1.1 (from browser)
 /network/software/packages/file_list.pxt (from Apache)

Date:
  Mon Jan 31 18:59:10 2005

Headers:
  Accept: */*
  Accept-Encoding: gzip, deflate;q=1.0, identity;q=0.5, *;q=0
  Accept-Language: en, ja;q=0.92, ja-jp;q=0.96, fr;q=0.88, de-de;q=0.85,
de;q=0.81, es;q=0.77, it-it;q=0.73, it;q=0.69, nl-nl;q=0.65, nl;q=0.62,
sv-se;q=0.58, sv;q=0.54, no-no;q=0.50, no;q=0.46, da-dk;q=0.42, da;q=0.38,
fi-fi;q=0.35, fi;q=0.31
  Connection: close
  Cookie: rh_auth_token=3860628:1107215949x940d451a326a950bc2f921ea5fedce7e;
pxt-session-cookie=1222203127xf55ed6aa4156f70bad2f0845ea063621
  Host: rhnapp.vip.phx.redhat.com
  Referer: https://rhn.redhat.com/network/software/packages/file_list.pxt
  User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/125.5.5
(KHTML, like Gecko) Safari/125.12
  Via: 1.1 rhn.redhat.com
  X-ENV-HTTPS: on
  X-Forwarded-For: 66.93.33.41
  X-Host: rhn.redhat.com
  X-Proxy-Forwarded-For: 66.93.33.41
  X-Proxy-Forwarded-Host: rhn.redhat.com
  X-Proxy-Forwarded-Server: rhn.redhat.com
  X-Replace-Content-Active: 1
  X-Server-Hostname: rhn.redhat.com

Form variables:


User Information:
  User tomosoftware (id 3860628, org_id 4403581)

Error notes:
  (none)

Initial Request:
  Yes

Error message:
  not enough information to make a guess about what package you're looking for!
at /usr/lib/perl5/site_perl/5.6.1/i386-linux/Sniglets/Packages.pm line 289