Diagnosis
In a previous step, you defined your own headers for this statistic orranked list. Now, you have changed one of the reference units for acurrency amount field or a quantity field.
With standard headers, the reference unit is always displayed on thesecond line of the column header with currency amount fields andquantity fields. If you change the reference unit, the standard headersare automatically adjusted, i.e. the modified reference unit is enteredin the header.
Since you have defined your own headers, this adjustment is notpossible.

Procedure
Please check your own headers. If the reference units appear in theheaders, they must be changed in line with the modifications. When youcompare your own headers with the standard headers, you can see wherethe query would insert the reference units.
If you want to display the reference units in the query list, you mustinclude these reference units in the headers.