Stuck at 99% then 16 hours shutting down

Hello, running an Umbrel with the exact same hardware as prescribed on your website. It’s been fine for a few months but two weeks ago it stopped synching. Yesterday it was still stuck at 99.1%. I tried to restart by shutting down (in the menu on the UI page) and now it’s stuck on the shut-down page (“do not refresh this page or turn off your Umbrel”). Has been showing this message for 16+ hours now.