This morning I was doing fine, playin ranked and everything ok, then i got prevented from the game to play any other match.]
Bug reproduction steps
I don't kno if it has something to do with that, but today I build a new traptrix deck. Since i wanted to modify the list of my cards, I simply cloned my actual deck, and modified the decklist. After that, I tried to test it in the testroom and it said "invalid amount of cards", even tho i had 40 cards in the main deck, and 15 on both extra and side. I then quitted the practice mode and tried to play online, and I was prevented to play any other matches, with any other deck]
same is with me!