Agrarian skies map problem Reply Fast!!!!

First i installed Curse launcher then the official agrarian skies modpack. Then i launched the server with the selected map - download link: https://mods.curse.com/worlds/…home-b#t1:other-downloads then me and my friends are being spawned in an endless void. Then i managed to get running the map and played like 1-2 hours. The next day i started up and the map is automatically reset and we get spawned in the void again. Then i loaded the good map again where we just started playing and we played for 5 minutes then i restarted the server and again the map was just an endless void. How can i fix this? Reply fast if you can! :pinch: