I bought the upgraded Team Valeros bundle, everything went through, the chests open, there are now Two Ornate and charming Longswords in my Promo cards (in addition to the one instance of ornate and charming Crossbows). I go to buy the Upgraded harsk bundle and it says:

"Error

Authentication is Required. You need to sign into your google account."

 

Except I am signed in. So I signed out and signed back in. I closed out and restarted the game. I even restarted the entire phone and restarted the game. The error persists. How can I fix this so that I can buy the Upgraded Harsk bundle?

I got that too, it might be because the game just updated? Wait a few hours and try again.

Seems fixed after daily update.