Honestly, all I can suggest for now is that you make sure you have everything updated (browser, Flash Player,...) and clear your cache (?). Also, you could use another browser, but I'm not sure if this will help you at all. It is worth a try, though
I don't know when you reported your issue to the developer. They may need a while to answer, you know. You can also e-mail the support staff directly at dragonpals@r2games.com.