Social Media scrapping problem

Hi! We have a problem that is randomly occurring with our website (carnewschina.com). The thing is we’re using automatic plugins for sharing on social media.

Right now, sometimes the og:image is not shared (although, everything in code is fine). I checked the FB scrapper and in those cases there is status code 418. I’ve been trying pretty much anything and just got idea that it might be some cloudflare settings. Anyone encountered similar situation?

Thanks a lot