GRPS chapter6-11

I don't know why it says all the files have changed (again). I have deleted the entire thing about fives times in both my github and on my computer, to try and get it up-to-date, but it persists in telling me that I have changed every darn file in the library. There should be another 100 files in Contrib/GRPS, which I can see in mine. I realize the problem is mine, but how come WeBWorK is so user-friendly and the contribution method is so user-unintelligible?
Please rescue me! I got this to work at Thanskgiving, it must have been a turkey miracle.