Patron update failed.

{"desc":"The given username already exists in the database","servertime":"Wed Jan 16 13:56:44 2019","stacktrace":"/usr/local/share/perl/5.22.1/OpenILS/Application/Actor.pm:588 /usr/local/share/perl/5.22.1/OpenILS/Application/Actor.pm:412 /usr/local/share/perl/5.22.1/OpenSRF/Application.pm:628","textcode":"USERNAME_EXISTS","ilsevent":"1200","pid":14890}