Thank you Donka! You helped me a lot!
Yes I am using Wordpress and i am having a SEO plugin by yoast, which has Facebook Open Graph future. I was trying to configure but I didn't get any luck here. Can it be that this cause me a problem?
By the way, I can't debug my websites home page, because I am getting this error:
Errors That Must Be Fixed
Object Invalid Value: Object at URL 'h**p://websitemarketingtricks.com/' of type 'article' is invalid because the given value '' for property 'fb:app_id' could not be parsed as type 'fbid'.
Or sometimes I am getting this type of error:
Critical Errors That Must Be Fixed
Bad Response Code: URL returned a bad H**P response code.
Does this only works with with pages?