Seaquel
SQL Server error code

SQL Server error 8695

SQL Server raises error 8695 at severity 16, which marks a problem with the query or data that you can correct.

Cannot execute query because of incorrectly formed XML plan in USE PLAN hint. Verify that XML plan is a legal plan suitable for plan forcing. See Books Online for additional details.
Msg8695
Severity16
Group8000–8999

Source: Database Engine events and errors