armbian failed fastmirror.pp.ua:80 
	 
	Do first:
 
curl -s http://apt.armbian.com/mirrors | jq .
	Do second:
 
vi /etc/apt/sources.list.d/armbian.list
change 
https://apt.armbian.com
to
any another mirror from step 1
	 
	Edit /etc/apt/sources.list.d/armbian.sources and replace the URL https://apt.armbian.com with your preferred mirror. 
	 
	Step 3: 
	 
 
rm -rf /var/lib/apt/lists/*
apt update --fix-missing && apt upgrade
use it!
apt autoclean && apt autoremove # after