Hello after upgrading to the latest version I started to get a lot of errors I never had with 2021.6.6
Running supervised in docker on Debian. Updated following usual procedure.
No error during update process but just after I noticed all historical data was not shown.
Attached a log extraction.
Rebooting HA takes now more than 5 minutes when before it was below 20 seconds.
Any help would be greatly appreciated as I spent last 8 hours with absolutely no luck 
Not sure it will help you but I was in the same situation and after trying to restart either the supervisor docker or the homeassistant docker I ended up restarting the computer itself and everything came up after that.
I restarted several times the mini pc on which I have installed HA but unfortunately in my case with no luck.
I also tried to update Debian packages but they were already up to date.
Can’t figure out where this error is coming from.
I finally “managed” to solve.
Removed phpMyAdmin
Removed MariaDB.
Restarted.
All errors have disappeared.
As well as all historical data. Not a big deal for me.
