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SQL Server error code

SQL Server error 8696

SQL Server raises error 8696 at severity 16, which marks a problem with the query or data that you can correct.

Cannot run query because of improperly formed Spool element with parent RelOp with NodeId %d in XML plan in USE PLAN hint. Verify that each Spool element's parent RelOp has unique NodeId attribute, and each Spool element has either a single RelOp sub-element, or a PrimaryNodeId attribute, but not both. PrimaryNodeId of Spool must reference NodeId of an existing RelOp with a Spool sub-element. Consider using unmodified XML showplan as USE PLAN hint.
Msg8696
Severity16
Group8000–8999

Source: Database Engine events and errors