See directions on egg buddies web site.to remove egg buddies and add it back. (FIXYA is a service to answer questions and is not connected to Facebook or Egg Buddies.)
I cannot login to Egg buddies with facebook
Certain users are having problems accessing Egg Buddies using their facebook account. This is usually caused by some malfunction on facebook's side. It might help if you try Removing Egg buddies and then try to login again (You will be asked to add it back). To remove Egg Buddies,
click here and click on "Remove app" (left column, bottom). Don't worry, you will not lose any of your egg buddies statistics and trophies by removing it. Then click again on "Go to app" to re-install egg buddies.
Egg Buddies - go to this link and click on Help
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