Talk:"Interstellar Tanabata Festival"/@comment-93.185.237.228-20130626232155/@comment-9013340-20130627001949

make sure your logged on to Facebook

And then Clear cached files in setting - It says if you are experiencing problems with the display, try clearing the cache. Clearing the cache will not affect your game data.

Absolutely worst scenario, you would delete app and redownload and relog into facebook.