I tried to start my Server and then this happened
https://gyazo.com/1700cae45229f8974da7be01bf2722f5
My MultiverseCore version is compatible for 1.12 I use Spigot
Edit: It works now i just had to reinstall it.
The Aternos forums are now deprecated
Learn more about this change here.
For help regarding Aternos, we recommend you to visit our support center.