Seaquel
SQL Server error code

SQL Server error 6211

SQL Server raises error 6211 at severity 16, which marks a problem with the query or data that you can correct.

%s ASSEMBLY failed because type '%.*ls' in %.*ls assembly '%.*ls' has a static field '%.*ls'. Attributes of static fields in %.*ls assemblies must be marked readonly in Visual C#, ReadOnly in Visual Basic, or initonly in Visual C++ and intermediate language.
Msg6211
Severity16
Group6000–6999

Source: Database Engine events and errors