The error is insufficient/margin-failed. This is your broker that returns us this Insufficient margin/Failed Margin error when trying to open the position.
Either the size of the copied order is too large or you already have several open positions using margin, and probably a few P&L decreasing your free margin, consequently your account had during a period of time not sufficient free margin to execute the copy on the slave.
Please close some open positions, add funds to your account, or adjust the risk factor, and try again to place an order.