Seaquel
SQL Server error code

SQL Server error 7852

SQL Server raises error 7852 at severity 15, which marks a problem with the query or data that you can correct.

Parameter "%.*ls": If the %.*ls attribute appears on a parameter value node of type "%.*ls" (in the namespace "%.*ls"), it must refer to a CLR type.
Msg7852
Severity15
Group7000–7999

Source: Database Engine events and errors