Well mate, I've got inDesign CC and have similar issue. Mine is saying no internet, connect and try again... I contacted CC centre and they are saying I have to wait for 24 hours until SAB ( which I am not sure what it is) to be removed and the account will be activated. I must say Adobe charged me for the CC first and payment has been made.
I recommend you to contact their centre and explain to them what is happening. The other way, try to sign in to your creative cloud first and then run your inDesign CC and see how you go.
Kind regards,
Calvin