MFPLI00058S A descriptor is an apparent STRUCTURE member, but does not immediately follow a descriptor with a level-number.

A parameter descriptor in the declaration of an ENTRY has one of more attributes preceded by a level number but this is not part of the descriptor for a structure parameter.
Resolution:
Remove the level-number unless the parameter is a structure. If the parameter is a structure provide a structure descriptor.
Module:
PASS1.PL1