Seaquel
SQL Server error code

SQL Server error 6285

SQL Server raises error 6285 at severity 16, which marks a problem with the query or data that you can correct.

%s ASSEMBLY failed because the source assembly is, according to MVID, identical to an assembly that is already registered under the name "%.*ls".
Msg6285
Severity16
Group6000–6999

Source: Database Engine events and errors