Need some help on updating a plugin.

Been trying to make my own game with this nice plugin that I really like, but sadly it’s outdated. I tried to do fix it myself, but it doesn’t seem to work and I didn’t know ue removed a few things that I used to use a lot. It’s agony. Since I’m a new user and I can’t upload any attachments I’ll just use a dropbox link. Dropbox

You will need to fix all the errors mentioned for the class TrueFPSCharacter and then replace the required outdated functions.