I've installed 6 different plugins to the Facebook Like button and the "Facebook Open Graph Meta For WordPress", however always somebody clicks in the Like button in the font-end an error happens. If I click in the error link returned by Facebook, it says that the <meta property=og:image...> is missing, but it appears inside the <head> tag in the source code. All 6 plugins returns the same error. I have no idea where is the source of the problem.
I'll be glad if someone could help me.