The Community in more languages
Now the forum welcomes more languages.
You'll see a green translate button in comments and discussions to turn them into English
First of all don’t worry as this process will not delete your progress. As soon as you reinstall the game you will be back on the same level as before.
In order to delete the game from Facebook please follow these steps:
Go to “Settings => Apps” and press the “x” next to the game app.
Now clear the cache for your computer: http://www.wikihow.com/Clear-Your-Browser's-Cache.
Hope this does the trick