Another Minecraft server on Pterodactyl?

I've been running a BungeeCord network with Pterodactyl for some time, but when I wanted to create another Minecraft server I ran into the problem that "There was a problem with one or more of your inputs" was displayed and needed directly below it. However, I do not know what is needed. That's why I wanted to ask for a full tutorial on creating another server so I can see where my mistake is.

So here is the guide:

https://pterodactyl.io/panel/getting_started.html#picking-a-server-os

it should actually go, at least that says the programmer / manufacturer…

you may also be able to ask questions on the Github page…