Can you tell me what system are you using? If you're on Android the DLC is meant to go away after you've installed it. It just updates the normal build and then it's done. If you're on PC or Mac that shouldn't happen.
No it was on my laptop that got Windows and it's because of Windows my Download get deleted all the time so I did it that I downloaded the PC version on my phone and extended it there and moved it over to my laptop so they work now X3