I Updated Facebook and now It Won't Work
Edit: this appears to be a problem that Facebook know. It's an issue with the Facebook app, as well as not a generalised Play Shop problem.
This is what benefited me a minimum of.
- Settings > Apps > All > Google Play Store, Clear information and also Clear cache
- Settings > Applications > All > Google Play Solutions > Manage area, Clear all information as well as Clear cache
It does not injured if you reactivate your phone before you attempt upgrading facebook once again. As well as, the install was SLOW. Just at least 4-5 minutes. Yet, it did job. If not try to uninstall it, or merely wait on a fix.