[Bug]: remove "<nil>" in commands answer

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Current Behavior

Sometimes, a "<nil>" text appear:

<img width="902" height="349" alt="Image" src="https://github.com/user-attachments/assets/8bff06be-bfff-4e67-b1d6-845eee13849c" />

### Expected Behavior

No "<nil>", empty instead.

### Steps To Reproduce

_No response_

### Anything else?



