Oracle Message NNC-00424 - invalid address string

ERRORinvalid address string
CAUSEA caller provided the name server program interface with an invalid address value.
ACTIONNot normally visible to the user, except when using the name server control program. If the error occurs when using the control program, retry the failing operation with a valid address argument. Otherwise, turn on tracing and re-execute the failing operation. If the error persists, contact Worldwide Customer Support.