Hi everyone, I'm having a bit of trouble trying to connect to a live broker. My backtest works fine, but when I try to connect it up to GDAX it gives the the error:

Brokerage Warning: Order failed, Order Id: 4 timestamp: 7/6/2019 12:00:01 AM quantity: -0.00430798 content: {"message":"Trading pair not available"}

The trading pair i'm trying to use is BTCUSD.