Help getting umbrel lightning node working again - stopped out of nowhere. SSL error?

Another simple fix for this is to simply delete tls.cert/tls.key and restart lightning. You can do so with the following steps:

  1. 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.
  2. Type in the following command ssh -t umbrel@umbrel.local and press the Enter key
  3. Run sudo rm ~/umbrel/app-data/lightning/data/lnd/tls.cert and sudo rm ~/umbrel/app-data/lightning/data/lnd/tls.key
  4. You can then run umbreld client apps.restart.mutate --appId lightning. After restarting, new certs will be populated for you.