I cant add my cards to decks.

this is what it looks like:
http://puu.sh/eJttv/3337ed56e4.png

i get this error in every browser

Hmmm, seems to work fine for me. I assume you're trying to add cards to decks from your inventory page? As a 'workaround' you can add cards to decks on the deck pages themselves. In the upper-right there is an 'Import' drop-down list. Select either of the options here to add cards to your deck.

Edit: typo

it fixed it self, dont know why.. thanks for the reply though :)