This error can occur when using an ad blocker, firewall, or anti-tracking browser plugin that blocks requests to facebook.com. Our games must be able to access facebook.com to offer features like resource gifts.
To make sure your browser is not having issues that interfere with play, please:
1.) If you are using an ad blocker or firewall, add "facebook.com" to the white-list of allowed sites.
2.) Try switching browsers (Google Chrome works best), and upgrade your browser to the latest version.
3.) Clear your browser's cache and cookies. Here on instructions on how to do this : http://bit.ly/1fNPllf
4.) Disable browser plugins or add-ons. In Chrome, you can disable all add-ons by pressing CTRL+SHIFT+N.
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