@@ -, +, @@ --- acqui/vendor_issues.pl | 5 +++++ 1 file changed, 5 insertions(+) --- a/acqui/vendor_issues.pl +++ a/acqui/vendor_issues.pl @@ -48,6 +48,11 @@ if ( $issue_id ) { } my $vendor = Koha::Acquisition::Booksellers->find($booksellerid); +unless ( $vendor ) { + print $input->redirect("/cgi-bin/koha/errors/404.pl"); + exit; +} + if ( $op eq 'add_form' || $op eq 'show' ) { $template->param( issue => $issue ); } elsif ( $op eq 'add_validate' ) { --