I tried the documented methods to no avail.
A consistent error was: no module named django
I dug around and found the solution in:
@netbos posted the one line of code I needed:
bash <(curl https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh)
Bingo! the stream of terminal text started flowing.
yeah man the bash instead of the sh was the cure to the headache and the solution to my desire to upgrade easily and efficiently...