SAP Message VN301 - Interval 01 in Number range NASTSORTNR could not be found

Diagnosis
Interval 01 in Number range NASTSORTNR has not been created.

System Response
The required number cannot be taken from this number range.

Procedure
Check the number range NASTSORTNR to see if Interval 01 exists. If
not, create it.
IF &DEVICE&='SCREEN'
Proceed
ENDIF