[Koha] Software error when checking out

[Morgan Earnshaw]

Hello,
 
There is one record that I'm having issues trying to check out. I have been able to check out other items to this patron and to others.
 
I get the software error:
DBIx::Class::Storage::DBI::_dbh_execute(): Duplicate entry '304' for key 'PRIMARY' at /usr/share/koha/lib/Koha/Object.pm line 120
 
Anyone have any ideas on what's going on?

Kind regards,
 
 
Morgan Earnshaw
Information Services
NZEI Te Riu Roa
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