Good day! I freshly installed koha 3.8 (the latest version) in Debian 6.0.2 through Virtualbox. I imported mysql data into the database which were gotten from previous koha installations (virtual machines of Kyle Hall Koha versions 3.2 then Koha 3.6). The problem I'm getting is that there are no physical items on the (bibliographic) records when in fact there was in the previous KOha versions. I've tried all stuffs like run misc/maintenance/remove_items_from_biblioitems.pl --run I got this error message: Use of uninitialized value $cn_item in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. Use of uninitialized value $cn_class in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. Use of uninitialized value $cn_item in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. .Use of uninitialized value $cn_class in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. Use of uninitialized value $cn_item in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. Use of uninitialized value $cn_class in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. Use of uninitialized value $cn_item in concatenation (.) or string at /usr/share/koha/lib/C4/ClassSortRoutine.pm line 118. .No biblionumber tag for framework "LAWS" at /usr/share/koha/lib/C4/Biblio.pm line 3103. then run rebuildzebra and got this error message: error retrieving biblio 79032 at /usr/share/koha/bin/migration_tools/rebuild_zebra.pl line 485. error retrieving biblio 79033 at /usr/share/koha/bin/migration_tools/rebuild_zebra.pl line 485. 17:09:44-02/07 zebraidx(2768) [warn] MARC: Bad offsets in data. Skipping rest 17:09:44-02/07 zebraidx(2768) [warn] Record didn't contain match fields in (bib1,Local-number) Thanks and long live KOha! EUGENE ESPINOZA