Hey Lisa 🙂
We are in the process of retiring the Facebook Events plugin and replacing it with our newest plugin, Event Aggregator. It is “baked into” The Events Calendar and doesn’t require installing/activating any additional plugins. It’s activated by inputting your EA license key under Events > Settings > Licenses on your WP site.
You have been granted a license for Event Aggregator and it is set to expire on the same date your Facebook Events license expires. For information, please review our Moving to Event Aggregator Knowledgebase article and if you run into any issues along the way, please create a separate thread.
I hope this clears up any confusion and let me know if you have any additional questions on the matter. Cheers!