Hi colleagues: After importing marc record when I click Mange staged records, the following error occurred: Koha error The following fatal error has occurred: Can't locate Algorithm/CheckDigits.pm in @INC (@INC contains: /usr/share/koha/lib /etc/perl /usr/local/lib/perl/5.10.0 /usr/local/share/perl/5.10.0 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl .) at /usr/share/koha/lib/C4/Labels.pm line 25. BEGIN failed--compilation aborted at /usr/share/koha/lib/C4/Labels.pm line 25. Compilation failed in require at /usr/share/koha/intranet/cgi-bin/tools/manage-marc-import.pl line 36. BEGIN failed--compilation aborted at /usr/share/koha/intranet/cgi-bin/tools/manage-marc-import.pl line 36. ApacheServer version: Apache/2.2.9 (Debian) Server built: Jul 14 2009 20:01:17 Koha3.00.00.107 Koha DB3.0000107 MySQLmysql Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using readline 5.2 OSLinux debianhostname 2.6.26-2-686 #1 SMP Fri Aug 14 01:27:18 UTC 2009 i686 GNU/Linux Perl5.010000 Even when I click MARC Import (managing batches) the same error occurred. Look forward to your kind solution or if there any solution previously mentioned kindly give me the source. Regards, Md. Zahid Hossain Shoeb