[Plugin: Jetpack by WordPress.com] Facebook share not working

Hello everybody concerned,

I am facing problems in sharing links from my website:
Nahdism.Com

Was able to share main site and pages except posts, but now not able to share anything.

Tried facebook debugger which says “Error parsing input URL, no data was cached, or no data was scraped”.

At first, I thought it must be server side issue so changed the host, but it didn’t help.

Then added some code in .htacess file to mod_security something but it doesn’t affected either.

Then thought must be some plugin conflict, so deleted all plugins except Jetpack (because it’s one of the favorites). Especially, Yoast and W3TC, which are know to have conflicting issues with Jetpack. But to no avail.

So when nothing helped, even deleted Jetpack. As soon as it was done, I wasn’t able to share any links, neither homepage, nor posts, nor any other pages.

Even tried disconnecting CloudFlare, but nothing changed.

Eventually re-enabled all plugins all over again, including, Jetpack, Yoast, W3TC, Cloudflare.

Please explain your answers precisely because I am not much technology or code understanding kinda person. I am even new to WordPress. So it’s a humble request to give in-depth and precise answers so as to where to make tweaks, with line numbers and where to find those files, etc.