Yes, this is an older bug, we call it the "ghost slot" - We don't have a fix yet, just a workaround - I've increased the number of pages you can manager to 5 (although only 4 slots will work until a fix is found).
It is a bug. This issue has happened to many users with page statistics not matching actual pages. You can send a direct message to someone on staff like @jeffhoard and they will sort it out.
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.