Seaquel
SQL Server error code

SQL Server error 2102

SQL Server raises error 2102 at severity 16, which marks a problem with the query or data that you can correct.

Cannot %S_MSG %S_MSG '%.*ls' since there is no user for login '%.*ls' in database '%.*ls'.
Msg2102
Severity16
Group2000–2999

Source: Database Engine events and errors