Hi Today I tried to update a Koha 21.11.10 database to Koha 23.11.04 but the update process failed at the following point: Upgrade to 23.06.00.068 [22:55:59]: Bug 23798 - Convert OpacMaintenanceNotice system preference to additional contents ERROR - {UNKNOWN}: DBI Exception: DBD::mysql::db selectrow_array failed: Unknown column 'id' in 'field list' at /usr/share/koha/lib/C4/Installer.pm line 741 I couldn't find anything regarding this error in Bugzilla, but maybe it is related to https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=23798#c12 which shows a similar error regarding an "Unknown column 'title'". How should I proceed? Best wishes: Michael -- Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz T 0041 (0)61 261 55 61 · E mik@adminkuhn.ch · W www.adminkuhn.ch