The Blazing Moon Koha install guide (http://www.blazingmoon.org/guides/k3-on-u810-1.html) discusses this error with a couple of suggestions on resolving it. Search this page: http://www.blazingmoon.org/guides/k3-on-u810-8.html for the text "Fatal Crash when Creating New Vendor". .Andy From: koha-bounces@lists.katipo.co.nz [mailto:koha-bounces@lists.katipo.co.nz] On Behalf Of arun kumar Sent: Thursday, March 12, 2009 2:20 AM To: koha@lists.katipo.co.nz Subject: Re: [Koha] koha3 in ubuntu8.10 i have installed koh3 on ubuntu8.10 . while adding vendor it shows the following error Koha error The following fatal error has occurred: Undefined subroutine &main::AddBookseller called at /usr/share/koha/intranet/cgi-bin/acqui/updatesupplier.pl line 92. Apache Server version: Apache/2.2.9 (Ubuntu) Server built: Sep 19 2008 13:43:21 Koha 3.00.00.107 Koha DB 3.0000107 MySQL mysql Ver 14.12 Distrib 5.0.67, for debian-linux-gnu (i486) using readline 5.2 OS Linux ubuntu-laptop 2.6.27-11-generic #1 SMP Thu Jan 22 17:22:40 UTC 2009 i686 GNU/Linux Perl 5.010000 -- WITH BEST WISHES ARUNKUMAR.P