https://ubntwiki.com/guides/changing_the_default_site_in_unifi

https://help.ui.com/hc/en-us/articles/204909754-UniFi-Layer-3-Adoption-for-Remote-UniFi-Network-Applications#8

set-inform http://ip-of-host:8080/inform

Also, be sure to set the inform url with the actual LAN IP of the controller (if you are using Docker for the unifi controller - which was otherwise using http://172.17.0.2:8080/inform as the url…)

It's the wrong IP address Grommit!

https://community.ui.com/questions/UniFi-Installation-Scripts-or-UniFi-Easy-Update-Script-or-UniFi-Lets-Encrypt-or-UniFi-Easy-Encrypt-/ccbc7530-dd61-40a7-82ec-22b17f027776

dpkg-reconfigure tzdata

https://help.ui.com/hc/en-us/articles/360006634094-UniFi-Repairing-Database-Issues-on-the-UniFi-Network-Application