Just a heads up for anyone having problems with Mariadb after the last update of nginx proxy manager. The update, which is pretty awesome, had some weird effect on mariadb which caused all kinds of database connection errors. Those errors in turn caused a memory leak. My VM usually uses around 3.5gb and now it filled up to the initially allocated 6gb, and later 9gb, in the run of a day, after which HAOS became very sluggish. Rebooting the VM resolved the issue for a day or so.
I ended up reverting my database back to the standard MySQL database and disabled mariadb. Problem solved. Pretty easy to do, there’s a good thread lingering around the forum somewhere. Tip: don’t covert the database on the HA machine but use a beefier machine. My 1gb database was converted within 5 minutes on a 13thgen i5 32gb machine. If you do this on your pi, n100 or a minimally configured vm, bring lots of coffee and something to read 