How to fix og:title and og:type missing on wordpress?

Hi guys,
Here I am down with this problem, and I am afraid this might be a major drawback for me to get my articles a virality on facebook.

Everything is working fine with my website, but when I go to Facebook Debugger, and submit any article url, it sends me a og:title and og:type missing.

Here is an example:

Scrape Information

Response Code:	200
Fetched URL:	https://theinsight.co.in/index.php/english-bites-book-review/
Canonical URL:	https://theinsight.co.in/index.php/english-bites-book-review/
Like Button Warnings That Should Be Fixed

Like Button Tag Missing:	og:title is missing. The og:title meta tag is necessary for Facebook to render a News Feed story that generates a high click-through rate.
Like Button Tag Missing:	og:type is missing. The og:type meta tag is necessary for Facebook to render a News Feed story that generates a high click-through rate.
Open Graph Warnings That Should Be Fixed

Inferred Property:	The 'og:url' property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property:	The 'og:title' property should be explicitly provided, even if a value can be inferred from other tags.
Inferred Property:	The 'og:description' property should be explicitly provided, even if a value can be inferred from other tags.
Parser Mismatched Metadata:	The parser's result for this metadata did not match the input metadata. Likely, this was caused by the data being ordered in an unexpected way, multiple values being given for a property only expecting a single value, or property values for a given property being mismatched. Here are the input properties that were not seen in the parsed result: 'fb:admins'
Object Properties

fb:app_id:	************
og:url:	https://theinsight.co.in/index.php/english-bites-book-review/
og:type:	website
og:title:	English Bites - My Fullproof English Learning Formula : Book Review
og:image:
og:description:	English Bites is non-fiction book by Manish Gupta which spreads through 334 pages giving the readers plethora of words to add on in their vocabulary pocket. The book, in first few pages, sounds like the author's journal in mastering the English language and its idiosyncrasies.
og:updated_time:	1380730487
Share Preview

English Bites - My Fullproof English Learning Formula : Book Review
https://theinsight.co.in/index.ph...
English Bites is non-fiction book by Manish Gupta which spreads through 334 pages giving the readers plethora of words to add on in their vocabulary pocket. The book, in first few pages, sounds like the author's journal in mastering the English language and its idiosyncrasies.

Based on included and inferred properties, the above preview is what users will see when they share this url. See this in the share dialog.
Raw Open Graph Document Information

Meta Tag:	<meta property="og:image" content="https://theinsight.co.in/wp-content/uploads/2013/09/English-Bites-My-Fullproof-English-Learning-Formula-634x330.jpg" />
Meta Tag:	<meta property="fb:app_id" content="***********" />
Meta Tag:	<meta property="fb:admins" content="" />
URLs

Graph API:	https://graph.facebook.com/657127700978538
Scraped URL:	 See exactly what our scraper sees for your URL
Facebook ? 2013 · English (US)
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Now, I am using a plugin called Facebook comments, and I have added my fb app id on it as it has asked me for. I also use the like buttons that come with my theme and I use addthis share plugin to identify shares of a particular post.

What am I doing wrong? Any help would be appreciated.
Thanks a lot.

I am leaving some quick links for reference, let me know if you need any more information on that.

Website Address
Facebook debugger
One random article to test