After update ... unfortunately, (Message, Play Store, Ucbrowser, ) has stopped.

Dear Friends

Yesterday i update my mobile. after that my all previous app uninstalled. then i try to download again from play store ... unfortunately, Play Store has stopped.

same massage on almost all app which i used usually...

kindly help me out

i logout my gmail account ... now i try to reenter it ... unfortunately, .................... has stopped.

help me