Would, you please stop using terms as "Fix please" and "your FC is toasted." ? This is not the reality lol..
My fightclass works perfectly fine, you can ask the more then 100 people using it without any issues at all.
I can see from your screenshot, that this is not a fresh install lol..
When i say install to a new folder, i mean COMPLETELY new folder, NOTHING can be in the folder when you install the bot.
Please make sure you are on a fully new wrobot folder, with fresh install, make sure you have NO plugins and NO addons for wow.
Also try adding Auto Shot to your action bar.
These problems you are having, is not because my fightclass does not work. It's because you are either doing something wrong, or you are using some bugged plugins/addons.