Hello Community!  I am in need of some help.  I have researched this issue and attempted my due diligence, although I am not a programmer by any means.  Can anyone point me in the right direction on identifying and solving the following issue...

I am live trading on GDAX, using the python library.  After about an hour of trading, I begin to receive this error:  "New Order Event: Time: 2/18/2018 3:28:00 PM OrderID: 124 Symbol: BTCUSD Status: Invalid Message: Insufficient buying power to complete order".  At that point, the system continues to attempt a limitorder short/sell and it breaks the system and all trading stops.  I am test trading on a 10% of my portfolio algo, so I have a total portfolio value 90% unused during the whole algo.  The algo generally works without issue for the first hour or so.  Any help would be greatly appreciated!

Here is a list of the message errors:

2018-02-18 15:28:00 :

Limit Order: -0.01962778000000000000000 coins @ $10855.35 per coin

2018-02-18 15:28:00 :

New Order Event: Time: 2/18/2018 3:28:00 PM OrderID: 124 Symbol: BTCUSD Status: Invalid Message: Insufficient buying power to complete order

2018-02-18 15:28:00 :

New Order Event: Time: 2/18/2018 3:28:00 PM OrderID: 124 Symbol: BTCUSD Status: Invalid Message: Insufficient buying power to complete order

2018-02-18 15:29:00 :

Order Error: id: 125, Insufficient buying power to complete order (Value:-213.4776).

2018-02-18 15:29:00 :

Limit Order: -0.019627780000000000000000 coins @ $10876.3 per coin

2018-02-18 15:29:00 :

New Order Event: Time: 2/18/2018 3:29:00 PM OrderID: 125 Symbol: BTCUSD Status: Invalid Message: Insufficient buying power to complete order