Hi Beda, there is a known issue with the database updates that will be fixed with 21.11.01: *Bug 29631* <https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=29631> - 21.06.000.12 may fail Hope this helps Katrin On 10.12.21 15:14, Beda Szukics wrote:

Upgrading from 21.06 the webinstaller stops with:

Upgrade to 21.06.00.012 [15:11:07]: Bug 15067 - Add missing languages ERROR: {UNKNOWN}: DBI Exception: DBD::mysql::db do failed: Duplicate entry 'IN-region' for key 'uniq_lang' at /usr/share/koha/lib/C4/Installer.pm line 738

What can I do?

Beda _______________________________________________

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