Diagnosis
You chose a field for creating sums. At an earlier time you definedthat temporary sums should be output on the control level specified inthe warning. This is not meaningful on this control level for the fieldselected for summation. The control level field lies in the logicaldatabase in a segment that is hierarchically lower than the field usedfor summing.

Procedure
Check if the fields you selected, the sorting sequence and the fieldsselected for summation are really meaningful.