Like button error: saying “fb:admins” meta tag not present when it is?

I don't see that error when I run the page through the debugger: https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fwww.good-at-maths.com%2Faqa-gcse-maths-past-paper-solutions%2F.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.