Google service has stopped.plz.help

[AC Question]

Hi im having an anoying problem im using lg gflex on jellybean and i have a pop up box that stays on my screen and wont go.At top of box its written bug fix and insie the box it.is said unfortunately google service has stopped,you need to install a tool to fix the bug. And at bottom theres an update button but can be pressed plz help im having problem using my phone with this pop up that stays all long.Thx in advance.