Hey J0nsan are you on a Pi 4 and have tried reflashing already/replacing MicroSD card? After reflashing I’d run command: sudo reboot
Steps on relfashing here: https://umbrel.com/#start under How to install
Steps on How to SSH and Generating Debug Logs via the terminal are here: Official Umbrel Troubleshooting Guide and FAQ
Let me know what else you’ve tried so far and happy to further assist