Problem...Need Help!

I can't Play Any Games Or Any Application In My Mobile!!!
One Day While I was Playing games in My Mobile....It Dropped Frm My Hand Unfortunately & The Memory Stick(The Gamez & appz were saved in m.stick) was spread out frm my mobile...Then after inserting da m.stick again i saw some gamez & appz were missing...There was no name of those appz(xcept few).....Then I reset my mobile...formatted m.stick and again installed those gamez & appz. Now still I can run those but i cant save gamez(saving game playing position i mean) or settings(of apps or gamz)...Every time i run app or gam those get re-installed....So far I known Its My Java Problem(dunno how occurred)...But How can I resolve it??? By flashing New Firmware In My Phone.....Iam Using W850i.

ThanX in advance!