Disclaimer: I’m not a tech guy, but I might be able to help.
You can try following my directions at the link below. I think what you’ll need to do is to wipe your SSD and flash Umbrel directly to the drive, boot off of an mSD with PiOS and the changes outlined in the links, then reboot without the mSD (remove it from the slot) and install Umbrel directly from the SSD via the IP address. Yes, that means you’ll have to resync the node, but it should work
Please proceed with the understanding that you’ll lose your current data and configuration, and it might not work for you. But it seems worth a shot…