I’ve moved my site from HTTP to HTTPS.
Now, all the like counters of Facebook and other social media shares are gone.
That’s a common issue with Facebook. Since the sharing counts come directly from their API it’s not something we can fix in Jetpack. Facebook counts HTTP and HTTPS URLs as 2 different pages. They offer a work-around to fix such issues and get your sharing counts back:
https://developers.facebook.com/docs/sharing/webmasters/crawler#updating
That’s a bit of a complicated set-up, though. I’ve consequently created a little plugin you could install on your site to make things a bit less cumbersome.
To get started, download this zip file to your computer:
https://github.com/automattic/jetpack-addons/archive/custom-og-urls.zip
Then, go to Plugins > Add New > Upload Plugin in your WordPress dashboard. There, upload and activate the zip file you downloaded earlier.
Once you have done so, you can follow the instructions here to use the plugin to modify the posts where you want to regain your old counts:
https://github.com/Automattic/jetpack-addons/blob/custom-og-urls/README.md#why-would-i-want-to-do-that
Once you’ve done all that, you should be all set.
I’m sorry this is so complicated; unfortunately, that is one of the best ways to solve the issue on your post until Facebook updates the way they store sharing counts.
I hope this helps.
In addition all my Facebook comments were gone.
I would recommend that you contact the author of your Facebook plugin about this, but I suspect the problem might be related.