Seaquel
SQL Server error code

SQL Server error 8635

SQL Server raises error 8635 at severity 16, which marks a problem with the query or data that you can correct.

The query processor could not produce a query plan for a query with a spatial index hint. Reason: %S_MSG. Try removing the index hints or removing SET FORCEPLAN.
Msg8635
Severity16
Group8000–8999

Source: Database Engine events and errors