Seaquel
SQL Server error code

SQL Server error 8698

SQL Server raises error 8698 at severity 16, which marks a problem with the query or data that you can correct.

Query processor could not produce query plan because USE PLAN hint contains plan that could not be verified to be legal for query. Remove or replace USE PLAN hint. For best likelihood of successful plan forcing, verify that the plan provided in the USE PLAN hint is one generated automatically by SQL Server for the same query.
Msg8698
Severity16
Group8000–8999

Source: Database Engine events and errors