I'm having system instability as well (have for quite awhile actually, over various updates). But it for this particular one it does look like either closing the tab with the GUI open, OR disabling IPV6 fixes the issue. It is too early for me to tell yet whether this fixes my system instability issues though. One thing at a time
I unfortunately get this error filling up my log with my docker services disabled. So I do not believe the docker service is to blame. My symptoms are mostly just the web gui ceases to function. I can still access the shared folders, and in the cases when I do have dockers enabled they still function. But like I mentioned, it occurs even with dockers disabled.
Followed your instructions and it runs now. Also have MariaDB database up and going, but I keep getting this error with Statping. "Error 1298: Unknown or incorrect time zone: 'UTC'"
Any thoughts?