Unfortunately, Google Play Store has stopped?
Interesting. Try clearing cache and data, if that fails, install a copy of Play Store from AndroidPolice or something, and push to /system/app, if THAT fails, try a factory reset. If for what ever reason, THAT fails, your stuck.
(P.S I have no responsibilty if you mess up your device trying to Factory Reset or installing another copy of Google Play.)
Sent from my super rare, old Scroll Excel running Android 2.3 using the offical app.
DOES DAT APP RUN ON DEVICES STILL ROCKIN 2.3?