"The toolpath could not be created." Why?

Hey There
I have a problem. I want to use the CNC Funktion in Snapmaker Luban (the newest Version: 3.15.2). If I want to CNC a Picture or Text in Vector mode, it won’t accept any Toolpath. It doesn’t matter what kind of Bit I choose or what Path I choose. I can do what ever I want in the settings, but it always says: “The toolpath could not be created.”
And Therefore I can’t generate a G-Code.

What can I do to fix it ? Why is it even a Problem ?

Thanks for the help

Please try again with the new Luban 4.0.0, avaiable e.g. at https://luban.xyz/

Maybe also post a screenshot what you are trying to do when the issue comes up?

Do you have the correct machine chosen?
Are you trying to create a tool path that’s larger than your machine?
Share screenshots of what it’s doing.

-S