Hello. When I backtest a particular script strategy, I get this error message.

I have tried setting the margin to various values and get this error every time towards the end of the test.

[12599] Error 010: Invalid Margin == -1$
[12600] Error 010: Invalid Margin == -1$
[12602] Error 010: Invalid Margin == -1$
[12602] Error 010: Invalid Margin == -1$
[12603] Error 010: Invalid Margin == -1$
[12603] Error 010: Invalid Margin == -1$
[12606] Error 010: Invalid Margin == -1$
Monte Carlo Analysis... Median AR 24%
Profit 237$ MI 27$ DD 453$ Capital 667$
Trades 351 Win 20% Avg +4.6p Bars 152
CAGR 70% PF 1.19 SR 0.47 UI 102% R2 0.00
Generate Chart - please wait... ok