SignalStack Connection Denied

I am trying to connect SignalStack service to automate trade with my NinjaTrader (Tredovate) personal trading account. It is giving error message “Tradovate: Access is denied”. Please advice.

P.N. I am able to connect the same account with similar services like TradersPost and TraderSync.

i kept getting that signalstack error on tradovate too i eventually switched to pickmytrade n it works right out of the box it connects my tv alerts directly via webhook w zero config headaches