Fix issue #1 : unknown email crashes app#352

Tit-Co wants to merge 1 commit intoOpenClassrooms-Student-Center:masterOpenClassrooms-Student-Center/Python_Testing:masterfrom

Tit-Co:bug/email-not-found-crashes-appTit-Co/OpenClassrooms_Project_11:bug/email-not-found-crashes-appCopy head branch name to clipboard