C'thun deck starting game crashes with error

I have my Cthun deck, but now when I want to play wild, it say i have 31 card in deck, so i automatically remove one, game sart s to load, crash with some error that i cant connect. Restart game, again too much cards, remove one, but now it says deck have only 29 cards. Trying all combination, but again and again, i cant connect to traditional heartstone game, getting error, after restarting game, deck is weird and have 31 or 29 cards … when 31 cards one of them seems like “blured” when card is missing. I have screen. Please help, i love my Cthun deck in wild and now i cant play it

Delete the deck and remake it.

Don’t use a deck code, add each card by hand.