Hi regocon,
Have you installed the flash and shockwave plug-ins needed to play the games?
You may refer to the below links and test your computer using the link offered on the website.
Also the error code you are getting is specific to the website so I would suggest you to contact the game support and check –
http://www.king.com/support/tech\_support.jsp?language=en\_US
http://www.king.com/support/browse\_faq.jsp?categoryId=7
Hope this helps.
Thanks,
Meghmala – Microsoft Support
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