Seaquel
SQL Server error code

SQL Server error 9616

SQL Server raises error 9616 at severity 16, which marks a problem with the query or data that you can correct.

A message of type '%.*ls' was received and failed XML validation. %.*ls This occurred in the message with Conversation ID '%.*ls', Initiator: %d, and Message sequence number: %I64d.
Msg9616
Severity16
Group9000–9999

Source: Database Engine events and errors