Always get a fatal error

I downloaded the CARLA_0_9_9.zip and AdditionalMaps_0.9.9.zip from https://github.com/carla-simulator/carla/releases/tag/0.9.9. after unzipping it, it created a folder named WindowsNoEditor, i get into this folder and double click on CarlaUE4.exe, it starts to initiate the UE4 window, however, it gives a fatal error. Any suggestion on what the problem is?