Seaquel
SQL Server error code

SQL Server error 9524

SQL Server raises error 9524 at severity 16, which marks a problem with the query or data that you can correct.

The XML content provided does not conform to the required XML format for sparse column sets.
Msg9524
NameXMLERR_INVALID_COLUMNSET_XML
Severity16
Group9000–9999

What it means

An attempt was made to modify a column set. The XML content of a column set must meet the format restrictions of a column set. The general format of a column set is as follows:

Source: Database Engine events and errors