Hi Steph!
Thanks for getting in touch! I’m happy to help! 🙂
Our plugin does not place a default image. That image you see is actually from Facebook. When requesting the image in the import process, if the Facebook event has no images it sends that default image.
Unfortunately, the only way to remove that image would be to edit the event and manually removing / replacing it.
I wish I could give you a more simple way to do that, but there’s not much we can do to change that behaviour from Facebook.
Let us know if you have any other questions and we’ll be happy to help.
Best,
Victor