"kein AC" error during DAC validation

Greetings - Just purchased C10P from a very reliable online US vendor, received the DAC code via email. copied/pasted the DAC under Registration under my account and receive “kein AC” when trying to authenticate. Tried altering one digit and get -404 DAC doesn’t exist so it appears the server recognizes the string. Think this is a server error? Also tried to enter the DAC into eLicenser code registration and instantly receive “The installed elicenser software is too old”, even though it is the current build 6.11.6.1249.

Currently have a USB eLicenser with 9.5 Artist running fine. I bought the C10P from a very reliable music store/estore. Bought/running all my daw code and plugs from the same online retailer. No issues outside of this error

Thanks for your help/assistance/insight