The main ShapeDiver system still runs Rhino 6, and that is the system your account is linked to. Rhino 7 is mostly backwards compatible with Rhino 6 but we have already found some breaking changes and therefore we do not recommend to use Rhino 7 for uploading on the main Rhino 6 system.
We will make Rhino 7 the default option for free accounts early next year. Regarding paid accounts, it will only be available in the new plans (Designer and Pro). Until then, I recommend working in Rhino 6. I opened your definition in Rhino 6 and noticed that it did not produce any output in the Display components. By tracing back the issue, I noticed the following breaking change: in Rhino 6, the “Plane” input of the “Offset Curve” component is not optional, whereas it is in Rhino 7. Since you did not provide an explicit plane, the definition is not working in Rhino 6:
You can just provide a plane and it is likely that the Rhino 7 definition can now be uploaded. But then again, you might run into other issues in the future.