Seaquel
SQL Server error code

SQL Server error 9701

SQL Server raises error 9701 at severity 16, which marks a problem with the query or data that you can correct.

Cannot start Service Broker activation manager. This message is a symptom of another problem. Check the SQL Server error log and the operating system error log for additional messages and address the underlying problem.
Msg9701
Severity16
Group9000–9999

Source: Database Engine events and errors