Hi @pragma sorry to hear that, we can try another way and see how we go:
First- SSH into your device
SSH (Secure Shell) is a way to access and control a device, such as your Umbrel server running on a Umbrel Home or Raspberry Pi, via the command line. To access Umbrel via SSH, follow these steps:
Open a terminal window on your computer. On macOS, you can open the Terminal app that’s installed by default on every Mac. On Windows, you can open Command Prompt or the PowerShell app.
Type in the following command* and press the Enter key:ssh -t umbrel@umbrel.local*In the command given above, you can replace umbrel.local with the local IP of your Umbrel if you prefer. If you are using PowerShell on Windows 10, you may need to run ssh umbrel@umbrel instead of the command given above.
You will then be prompted to enter your password. This is the same password you use to access your Umbrel through a browser. The default password before you have created an account on your Umbrel is moneyprintergobrrr on Raspberry Pi, and umbrel on Umbrel Home. You will not be able to see your password as you type it into the terminal. Once you have typed in your password, press the Enter key.
This will established an SSH connection to your Umbrel server. You can now begin using the command line interface to perform various actions and troubleshoot issues that require SSH.
then try installing lightning from the command line
~/umbrel/scripts/app install lightning
Let me know what kind of output you get with that!