Hello!
How to fix this error?
21.05 to 23.05
Update errors :
- Upgrade to 21.12.00.013 [10:55:03]: Bug 29605 - Resync DB structure
for existing installations
ERROR: {UNKNOWN}: DBI Exception: DBD::mysql::db do failed: Duplicate
entry 'ar' for key 'PRIMARY' at /usr/share/koha/lib/C4/Installer.pm line 741
--
J.Baatarsuren
Dean of libraries
Mongolian National University of Education
<https://www.facebook.com/mubislibrary>
Улаанбаатар хот, Сүхбаатар дүүрэг
VIII-р хороо ,Улаанбаатар- 48 ,
Бага тойруу-14, МонголУлс-210648
Утас 77775115-1077, 89119934
Web: http://monkoha.com/ <http://library.mnue.mn/>
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