Powered Armor help - First mod

So I am working on a Powered Armor mod of my own for private use to play around with and want to do something similar like this https://www.youtube.com/watch?v=ypgO8OMzVkk but hitting a road block where it is saying imports omitted for the local variables and unsure how to go about fixing it or even trying to correct it any. Any possible ideas that could help or even a full in-depth explanation what in the cube world is going on? making it for a modded 1.20.1 playthrough.

Any help is appreciated!

Using MCreator 2023.4 to do this by the way, in case if anyone wanted to know-