Make sure your archive doesn't contain any unnecessary files next to the world.
I'm pretty sure it is just the world, and I just found out that it has something to do with my router ip because I went on a different computer, connected to the same router, and on a different account, and I got the same map loaded. So I need like a developer in the aternos server to diagnose this or something, because the point of generating a new world is to have a new world, not an ip specific one. Thank you for your concern!