Hi @KevinFlynn
We have a thread on this with some helpful tips over here. It might be worth checking that out to see if your solution is in there.
The most common reason is an incorrectly set license key - although it could be many other things also.
If nothing in there solves it for you, it would be great if you could show us the project file in which you initiate DeepAR so we can take a closer look for you. You can submit any files privately via this form or via the chat widget on deepar.ai