Seaquel
SQL Server error code

SQL Server error 8107

SQL Server raises error 8107 at severity 16, which marks a problem with the query or data that you can correct.

IDENTITY_INSERT is already ON for table '%.*ls.%.*ls.%.*ls'. Cannot perform SET operation for table '%.*ls'.
Msg8107
Severity16
Group8000–8999

Source: Database Engine events and errors