Place your finger at the bottom of the screen near the basketball, then swipe upwards. To keep your shot straight, swipe your finger in a vertically straight line. If your shot misses to one side or the other, it means your swipe was not straight.
Please reboot your device completely by holding down the power button for a few seconds and then sliding the slider that appears. If that does not fix the problem, shoot us a message using the form below and we will help you out.