Diagnosis
An add-on or a customer-specific enhancement was not implementedcorrectly in your system.
The CL_RECA_STORABLE_EXT=>MD_OBJNAME_EXT variable does not notcontain any values. Apparantly the INIT_BY_PARENT method wasredefined within a subclass of CL_RECA_STORABLE_EXT, without themethod of the super class being called.
The call of the method in the super class should be as follows:
CALL METHOD super->if_reca_storable_ext~init_by_parent
EXPORTING
id_objname_ext = id_objname_ext
io_parent = io_parent.

System Response
The program had to be terminated, because it is no longer possible tocorrectly assign the enhanced objects to the standard objects, and ifprocessing continued, this could cause data inconsistencies.

Procedure
Contact your system administrator.
The implementation of the enhancement (subclass ofCL_RECA_STORABLE_EXT) has to be corrected.