ninjabraap Repeteir Host says: "Couldn't open port for device none"Repetier-Host version 1.2.1Mac OS X 10.14.6MacBook Pro (15-inch, Mid 2012) 2.6 GHz Intel Core i7(no I will not be updating to any newer OS)Ender 3 Pro
Repetier Device "none" is not good. Should be the port name, so please check if the entered port name exists and belongs to the printer.
