Seaquel
SQL Server error code

SQL Server error 6376

SQL Server raises error 6376 at severity 16, which marks a problem with the query or data that you can correct.

For selective XML index '%.*ls', MAX_LENGTH optimization hint cannot be specified if length or maxLength facet is specified in schema for an element.
Msg6376
Severity16
Group6000–6999

Source: Database Engine events and errors