Root problem.

Hey all,
I believe there is a problem with the root in my brother's phone.
It is rooted, CWM 6 touch, and Cm 11 kitkat.
So the problem is now that any app that requires root does not work! The superuser is installed and it gives me the notification whether to grant the app root access or not. So I allow the app to access the root but it does not function correctly.
For example the GameCIH, I give it root access and try to change a value in any game but it does not work.
Also the MacSpoof.
It used to work perfectly before (Tried to flash cwm6 and I soft bricked it but then fixed it all. Thanks to the help of some users in xda)
So what seems to be the problem and how can I fix it?
Thanks in advance.

Edit: Sorry I should have posted this in trouble shooting and help section.

Sent from my GT-I8190 using xda app-developers app

DeathNotice said:

Unroot it and then try to re-root your phone bcoz it seems lyk ur superuser is crashed......jst do..it...ur problem will b solved most probably...

Click to expand...

Click to collapse

I actually did a couple of times but it didn't work. I tried wiping everything and flashing other cwm and rom but still same results.
Thanks for replying.