I downloaded the : EpicInstaller-10.5.4-unrealengine-f636d8bc9cb04925b0aefbd17e33a876 ) and once I click to install it just say verifying EpicInstaller-10.5.4-unrealengine-f636d8bc9cb04925b0aefbd17e33a876 and then it closes with no speculation that its install. What should I do?