Kindle Touch (4th gen) with FW 5.3.XX fails to install the hofix after succesful jailbreak

As title says, after a successful jailbreak, I tried to run the hotfix but it fails saying the following:

<img width="490" height="662" alt="Image" src="https://github.com/user-attachments/assets/da636156-00de-41bd-b8c3-0339f65cc3a1" />

Application Error
The selected application can not be initialized. Try it again.

Let me know if I can debug something for you.