Game is crashing. Need help

I am trying to check my card back collection and I am trying to activate my Warcraft card back but the game crashes and sends me back to the Home Screen. This is happening too often. It needs to be done. The game also crashes if I spend too much time in the Collection or in the late games of battlegrounds. Please just get rid of these crashes!!! This bug has been there since forever and I hate getting ignored.

I tried to play now, and I always get the “playful sprites” error message. My computer is great, what’s wrong with the game?