Hackshield Error

Well, first off, hello there!
Anyways, I read through many of the tutorials here, making sure I didn't no anything wrong in the process. So I've managed to inject and everything, and the hacks work in the game. However, I do get kicked in that 5-10 minute span with a Hackshield error. I've done over the injection many times, exiting before the click, trying from waiting a second to doing it right away. (Or am I supposed to exit after the click?)
Anyways, do I have to do some sort of "reset" each time I try, or do I just keep on trying to inject?

Thanks in advance.

Oh, I'd also like to know what's needed to be done when I want to stop playing with these hacks and remove them from my game... forever?

Which hacks did you try? Possibly some of them are already outdated and detected.