Expired? vectorizing app

sometime when i try to use Easel vectoring app i get this message… [uuid=DD2E15E7025748FC] This action has been secured by the developer of this website. Error: The signature has expired
can anyone tell me what this means? and how to fix it?

what browser are you using? check to make sure cookies are enabled. easel works best in google chrome.

I’m using Google chrome and most of the time the app works fine. I think it might be something to do with a weak wifi signal.
The best I can get is three bars ( router is in a separate building about 200 ft away ) this problem happens when I have two bars.
Everything works but sometimes it’s slow.

that sounds like it could be the problem. if the request takes too long then it will error out