Seaquel
SQL Server error code

SQL Server error 7006

SQL Server raises error 7006 at severity 16, which marks a problem with the query or data that you can correct.

OPENXML encountered a problem identifying the metaproperty namespace prefix. Consider removing the namespace parameter from the corresponding sp_xml_preparedocument statement.
Msg7006
Severity16
Group7000–7999

Source: Database Engine events and errors