Hi João!
Thanks for taking your time to report this.
I can confirm that we’ve recently experienced some issues with our Event Aggregator servers that might have cause delays when previewing your imports as well as failed imports.
We’ve just released a fix to address this issue, so things should be back to normal.
To learn more about the facebook API changes and how it affects your imports, please refer to the following article where you’ll find the latest updates about it > https://theeventscalendar.com/knowledgebase/ea-fb-privacy-policy/
Please try your imports again and let us know if they work on your end.
We apologize for any inconvenience.
Thanks,
Victor