Oes the problem of evil provide a defeater for the existence of God?

The paper most be mainly your own arguement, while at the same time giving insite on what theswe philosophers said,Aquinas, Aristotle, Hart, Oderberg. But remember its not a book report on these people its mainly your own arguement just using them as sources if need.Need to use two or three of them in the paper. It is being graded on how strong the arguement is and logic of the essay, grammer and big words arent to excirsed on grading of the essay.