https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=28048 --- Comment #2 from Nitesh Kumar Verma <vermanite@gmail.com> --- Owen Sir, I am using ../cgi-bin/koha/tools/import_borrowers.pl to import patron in .CSV format. I have upgraded from koha version from 16.05 to 16.11. After upgrading I am facing this error. I am using the same method as I have used earlier. Running KOHA since 2015 and have more than 8000 patron records. CSV Headers I am using: cardnumber,surname,patron_attributes,phone,address,branchcode,categorycode,email,password,userid. I am stuck in between as it is not possible to manually enter the details of 3000-4000 patron details on KOHA. Any help in this regard is highly appreciated. -- You are receiving this mail because: You are watching all bug changes. You are the assignee for the bug.