When I try to play Candy Crush on my IPHONE 4S running IOS 9.3.5 13G36 It crashes into a blank screen, after pressing the home button Candy Crush starts up again but with lost lives and at the start of the current level. Since the latest update I cannot buy gold bars, I get a message saying that the purchase failed and no momney has been taken from my account. What is going on and what is the solution.