Reading the code it is related to 17.11. The code says that you have a fine that is link to an item that does not exist. But we have a constraint at DB level that enforce it, so I am not sure how it can happen.
Could you tell use what returns the following SQL query: select itemnumber from accountlines acc where borrowernumber=XX You need to replace XX with the borrowernumber you get the error. You should also see if all these itemnumbers exist. Regards, Jonathan On Fri, 22 Dec 2017 at 08:04 Katrin Fischer <katrin.fischer...@web.de> wrote: > Hi Liny, > > please always give the complete version - we have 2 major releases every > year that are named Year.MonthOfRelease. Are you using 17.05 or 17.11? > > Katrin > > > On 22.12.2017 12:01, Liny Varghese wrote: > > Dear all, > > > > I am getting this error message while accessing one patron. > > > > Can't call method "biblio" on an undefined value at > > /usr/share/koha/lib/C4/Members.pm line 768. > > > > But this error is not coming for all users and this error came only > > after upgrading koha from version 3.20 to 17. > > > > Kindly help > > > > Liny Varghese > > Information Scientist > > University Library > > Cochin University of Science and Technology > > Kochi-22, Kerala > > _______________________________________________ > > Koha mailing list http://koha-community.org > > Koha@lists.katipo.co.nz > > https://lists.katipo.co.nz/mailman/listinfo/koha > > _______________________________________________ > Koha mailing list http://koha-community.org > Koha@lists.katipo.co.nz > https://lists.katipo.co.nz/mailman/listinfo/koha > _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz https://lists.katipo.co.nz/mailman/listinfo/koha