Apps stuck at "starting..."

Last night, the Bitcoin node was over 10% and today the page (http://umbrel.local:2100/) is not available and all the apps are stuck at “Starting…”. I was powering the RPi4 from the USB on the front of my Synology NAS and everything was working fine until today. The trouble shooting log suggested it might be a power issue so I switched to the power brick from my older MacBook Pro - now it says there’s no issues detected but the problem is not solved.
Any ideas?
P.S. I’ve tried to attach log files, but as a new user, I’m not allowed.

There was disappearing notification when booting about potential issues with SD card. I’ve replaced it and now it’s working again. All the personal data is still intact on the SSD.
This kind of notifications should have a much longer visibility.