Seaquel
SQL Server error code

SQL Server error 6222

SQL Server raises error 6222 at severity 16, which marks a problem with the query or data that you can correct.

Type "%.*ls.%.*ls" is marked for native serialization, but field "%.*ls" of type "%.*ls.%.*ls" is not valid for native serialization.
Msg6222
Severity16
Group6000–6999

Source: Database Engine events and errors