Hello!
AAPanel is still stable here, it works without problems.
BUT!!
When I have AAPanel in an container (lxc), and wants to take backup of the container and then restore it on an secondary server, the container is not having the same IP-address as the address it had at the moment of installation.
For example nginx will not work properly, I can't reach any of the websites.
I will search in the config files to find the old IP-address then change it to a new address to make it work. I am not worried about it. This is just a testing environment, and the real AAPanel server is still up and going stable :-)
But maybe you could make a feature or script that does this automatically?