FPEC2876E SORT FIELD IDENTIFIER `<V1>` IS NOT ALLOWED FOR LEVEL (`<V2>`).

Explanation
 Sort fields cannot be specified for all levels
of reporting. The specified identifier is not valid for this report
level. <V1> is the sort field specified with
the SORTBY option, <V2> is the report level
specified with the LEVEL option.

User response
 Correct the SORTBY option and use a supported
sort field for the selected LEVEL.