Seaquel
SQL Server error code

SQL Server error 6351

SQL Server raises error 6351 at severity 16, which marks a problem with the query or data that you can correct.

The xml schema collection for return parameter of module '%.*ls' has been altered while the batch was being executed. Please re-run the batch.
Msg6351
Severity16
Group6000–6999

Source: Database Engine events and errors