Facebook shares lost after moving to Https

I recently moved from http to https. In doing so, all of my facebook shares have been lost. My open graph tags have been updated (I’ve tried a couple of plugins) and new shares are working fine. However, all of the shares of blog posts that were shared prior to my conversion to https have been lost. I am a basic user with limited to no programming skills. I’m looking for an easy-to-implement solution to get all of my facebook shares back.