[Koha] Suddenly can't check in items

[Michael Kuhn]

Hi

 > It did work!
 >
 > I still can't check in these two items though? This fix is for future
 > issues?

Yes.

As written in your original screenshot there are ids existing in both 
tables "issues" and "old_issues" resp. reserves" and "old_reserves". You 
need to correct that:

https://wiki.koha-community.org/wiki/DBMS_auto_increment_fix#Dealing_with_corrupted_data

Best wishes: Michael
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