AUT-NUM ROUTE OBJECT

Please can any one familiar with route object creation help with understanding this error I am having a weird error with AUT-NUM object , even though i am using the correct maintainer password i keep getting this error message. Authorisation for parent [as-block] using mnt-lower: not authenticated by: RIPE-NCC-RPSL-MNT ***Info: Authorisation for [aut-num] using mnt-by: authenticated by: XXXXX -- Warm Regards