Seaquel
SQL Server error code

SQL Server error 8121

SQL Server raises error 8121 at severity 16, which marks a problem with the query or data that you can correct.

Column '%.*ls.%.*ls' is invalid in the HAVING clause because it is not contained in either an aggregate function or the GROUP BY clause.
Msg8121
Severity16
Group8000–8999

Source: Database Engine events and errors