Still it is unsolved. I think there is some other problme..
Accounts with emails cannot log in via DiceBot. I tested.
Accounts without emails can log in via DiceBot. I tested.
Crypto-games.net is also not working. I contacted support of that site. They says there is no any change from their side. I think it is my bad luck to cant use your good service.. Thank you
Did you select the correct site? Are you using your API key to log in?
Edit: If your API key isn't working, try generating a new one.