parameter is not defined

I am getting a dump in ECC 6.0

that,"Function module "SAP_WAPI_CREATE_EVENT" was called

with the parameter "EVENT_CONTAINER".

This parameter is not defined."

When i check this FM , there is no table parameter EVENT_CONTAINER defined in it.

CALL FUNCTION 'SAP_WAPI_CREATE_EVENT'

EXPORTING

object_type = c_object_type

object_key = l_objkey

event = c_event

IMPORTING

event_id = l_event_id

TABLES

event_container = l_container

EXCEPTIONS

objtype_not_found = 1

OTHERS = 2.

But in 4.6 C, it executes successfully, even when no parameter is declared there.

Can anyone suggest a solution?