Seaquel
SQL Server error code

SQL Server error 9516

SQL Server raises error 9516 at severity 16, which marks a problem with the query or data that you can correct.

XQuery: The name or one of the parts of a multi-part name supplied to %S_MSG('%.*ls') is empty. Empty names cannot be used to identify objects, columns or variables in SQL.
Msg9516
Severity16
Group9000–9999

Source: Database Engine events and errors