Featured Image Gone – SSL / HTTPS ???

Hello!

All of my featured images are gone and now show the gravatar image since I have set my site up on a SSL. Here is the image that it is showing now.

background-image: url(https://secure.gravatar.com/avatar/1e3bcdadb8d4488d5695733587b02713?s=350&d=mm&r=g);

How can I remove this to show my actual featured image again!? I have been stuck on this for days now…

Please help 🙂

https://wordpress.org/plugins/wp-user-avatar/