Hi Melissa,
You can try below steps and let me see if it will work :
Open the "Google Play" app and press the home button to return
Go to Settings > Applications > Manage Applications > ALL tab > look for GOOGLE PLAY > tap clear cache > tap force stop > Go back to Settings > Applications > Manage Applications > tap Google Services Framework > tap clear data > force stop
Reboot your device and google play store will work. Let me know if you will get the same error.
Hope this helps!