Loading page stuck on "Backing up..."

I was having issues with 0.4.4, much the same as outlined in this thread:

Despite waiting over a week it was still not connecting to the lightning server so I decided to reinstall an older version back to 0.4.1 using SSH. For several days I’ve been stuck on the loading screen as shown above, with the progress bar stuck at “Backing up…”.

I reflashed the SD to 0.4.4 but the same issue remains despite waiting 24h.

On the debug logs I have the following:

Does anybody know why it would be stuck on this step and what exactly it’s backing up?

Here are the full logs: