The child is not “Active” in the Centrelink system or an incorrect CRN number or date of birth have been entered. The parent needs to go to Centrelink and make the child eligible for CCB for the correct type of care (eg. LDC or FDC) or check their CRN numbers are correct and that Centrelink have the correct DOB in their system.
Make the child Informal while you check the child’s information, then you can still process the attendances. When the child becomes Active at CCMS and you are able to make them Formal, the payments will come through for all the attendances and you can then download the payments and update their account.