Hi Chris,
Thanks for reaching out to us! I’d be happy to help you.
Facebook recently announced a range of changes to their APIs (the protocols we use to ‘speak’ to their servers and retrieve event information) which are having an affect on a number of our users. So our Event Aggregator doesn’t work properly with Facebook, for the moment (you can read this page for updates).
That being said, it’s not normal that you don’t have the option to import from other sources (except for CSV), whereas your Aggregator License Key is valid. It might be a cache problem. Could you try to install and activate a transient cleaner plugin, such as this one?
Please let me know if that solved your issue.
Best,
Jeremy