Diagnosis
A program or system error has probably occurred. The function moduleAS_API_READ was incorrectly called. The parameter I_SELECTIONS orI_OBLIGATORY_FIELDS contains fields which do not exist in the fieldcatalog.

System Response

Procedure
If this message appeared in an SAP standard program and for an SAPfield catalog, contact your SAP Hotline.
Otherwise, the problem can probably only be solved by a programcorrection. For more details see the documentation on the functionmodule AS_API_READ and its parameters, in particular I_SELECTIONS,I_OBLIGATORY_FIELDS and I_FIELDCAT as well as the exceptionsPARAMETERS_INVALID and FIELD_MISSING_IN_FIELDCAT.
If necessary you can always change the affected field catalog.