Something like a String is too long for the column - eg "XXXXXX" saved into varchar(4) or a decimal with too many places, eg 1234.5678 saved into decimal(4,2) etc.
Bohemian answer is correct. Double check your property values.
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.