Fortiview Server Error:DB:Excepetion:Column 'XXX' is not under aggregate function and not in GROUPBY

[pankaj_stl]

We are facing issue after upgrading the Fortimanager to version 7.6.1, where no data is visible in Fortiview of Fortimanager and showing error as below.

Server Error:DB::Exception: Column 'XXX' is not under aggregate function and not in GROUP BY.

if anyone know how to resolve this issue.