It is not configuration. Or rather, not directly. Your PHP instance seems to be set to a user which cannot write to the folder you've specified.
Either chmod or chown it to something that the user which PHP runs as can write to.
Found the solution, the problem was related to a global variable not letting the exec run.
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.