So for the past few days I have been trying to use Aternos, however lately if the server restarts or is turned off and back on, or just off the world gets reset. I have tried this on vanilla to be sure it wasn't a mod issue and it still happened. My friend and I have lost multiple worlds because of this. And reinstalling wouldn't work because if it did then switching to vanilla would have fixed it. I have tried using a different Minecraft version as well, that also didn't work. So i'm am asking for help! If you have any idea what's going on or any idea of how to help fix this, please tell!
Im using mc version 1.12.2