ERROR using for Futures and websocket

I created the API keys in:

but when I try to access to the futures methods I have all the time this error:

binance.exceptions.BinanceAPIException: APIError(code=-2015): Invalid API-key, IP, or permissions for action, request ip:

e.g.: to get the futures_account_balance, but it is the same if I try to place an order futures_create_order

from binance.client import Client
from binance.websockets import BinanceSocketManager

client = Client(api_key, api_secret)
client.API_URL = ‘
print(‘Future Balance:’, client.futures_account_balance())

Please read this - Binance Testnet environments
Futures testnet need a different pair of API key/secret from