I just received cards in the mail and came online to deckbox to show I have received the cards but when I click the button it brings me to a 500 Internal Request Error. I tried on two separate computers each on different internet connections to be sure it wasn't just me. Is this happening to anyone else?

It's happening to me as well, I am unable to propose trades or cancel them

Sorry for the inconvenience, it's now fixed and working again.

That was amazingly fast, you're so awesome!

Indeed that was fast! Well played good sir.