As other users said, OpenGraph tags are used for social media platforms and can't be a substitute for meta tags. Therefore, it is recommended that you add meta descriptions to your website pages. Just in case you are not aware, the meta description should be between 120 and 150 characters.

Don't worry my friend, I had this problem too. BUT the solution is nothing as this is totally up to Google that what it shows in SERPs. All you have to do is to keep creating useful content. Hope this helps :)