Upgraded to 4.3 from 4.2 caused dom0 to break!

For context, I have upgraded from qubes 4.2 to qubes 4.3 by completely reinstalling qubes for 4.3 from a USB stick. I restored everything from Q’s 4.2 from my backup. Everything was working fine until I restarted my computer. The USB mice and keyboard still work, however nothing else works. In the screenshots below, I have tried to open restore qubes application and qubes template manager. The qubes manager does not open at all.

Please help me. I don’t want to spend another four hours reinstalling and restoring everything.