Default [Q] problems in rooting my tab 2 7.0 p3100

First of all I'm new to rooting. I just rooted my tab with Odin and flashed cm 10.1.3 on it everything worked fine bit after a hour or 2 all the root apps begun to show superuser denied. Except ROM manager and supersu every app is showing supersu denied.
Please help.....
And sorry for the mistakes if any