Sometimes that happens to us too. What usually helps is to refresh the page - press F5 at the top of your keyboard and try again. If you continue to have issues, you can contact our Customer Service Department at: http://asksupport.custhelp.com/app/ask
If you have the app version like I do, whenever I'm having technical difficulties, I just hold the top power button until you turn it off completely and then turn it on again and it should be back to normal. Hope this helps!