[sarim tahir]

I rooted my tab and after a few days I unrooted it. After unrooting it I faced a problem in one of my storages. I cant download anything it says i have insufficient storage while my int. storage has 2gb free and sdcard has 1gb.The storage that was at top was my ram but after this it's total space went to 0 and the apps I try to download I think give an error because somehow my default installation location has changed from int. storage to the above one.
Here are some screenshots:-
This is the above storage which was my ram and had more than 300mb of total space

This is my int. storage

This is my extsd

PLZ help