I managed to restart my node completely following these steps:
You have error that a specific Umbrel App do not start or it keeps staying in “installing”, maybe the docker container for that app it wasn’t installed correctly or it hangs.
Step 1 - Enter using SSH into your Umbrel node:
Step 2 - stop Umbrel node with:
cd umbrel
sudo ./scripts/stop
Step 3 - clean / reconfigure the broken container:
sudo rm -f .env && sudo ./scripts/configure
Step 4 - Restart your node:
sudo ./scripts/start