Not possible to log in from iphone after pairing with battle.net account

So I was playing on my iphone until the moment when the game asked me to link my device with my battle.net account. I did that ,but in the process the game got stuck (which often happens both on pc and mobile) and I had to restart it. Since then i am getting all the time the following screen:

  • Connection error
  • We couldn’t verify your account details. Check your login information and try again. 14.0.0.117232/117232

If I click refresh credentials the following happens:

  1. I am asked to login to battle net with my account
  2. When I do that I get the following error on google chrome:
    This site can’t be reached
    The webpage at blizzard-gry://localhost:0/?ST=AZbQMCe4GwOD2EFsZvk6zI3LfNafNODmtGMnItK_I6NQuiqocC5jMmVUYEZQjpxeTaSzWY6om8CYNEgb3oGIBq8&STT=enc&accountId=105332278&flowTrackingId=&flow_type=hard_account_login might be temporarily down or it may have moved permanently to a new web address.
    ERR_FAILED

Fortunately, I can still play on PC via battle.net, but I want to also play on my iphone. Please advise what can i do to fix that issue?