There might be just a little ! or other bit of logic hiding in the code that can be easy to miss when comparing to the git version.
Paste in your Mover.cs, Fighter.cs and PlayerController.cs scripts and we’ll take a look at them to see what might be the issue. You can format the code by putting ``` (three backwards quotes next to the 1 on your keyboard) on it’s own line, and then pasting in the text of the code on the line after that. End the code with three more ``` on their own line.