Order Rejected Error - terminated the strategy

[xewoox]

Could you please tell me what I do want causing this error.
Attached is the output from output window when the strategy terminate abnormally from point of view.

The error message popup within a dialog window is as follow:
Strategy "XStrategy" submitted an order that generated the following error 'Order Rejected'. Strategy has sent cancel requests, attempted to close the position and terminated itself.

[NinjaTrader_JoshP]

xewoox,

Unfortunately I cannot determine the cause from the information provided. Please post your complete logs.

[xewoox]

Attached the logfile

[NinjaTrader_JoshP]

Here is why:

2/4/2009 11:22:47 AM|1|32|Order='09337ee915eb467ab2cbed0efb21eec1/Sim101' Name='TSSFdStp' New State=Rejected Instrument='ES 03-09' Action=BuyToCover Limit price=0 Stop price=844.5 Quantity=1 Type=Stop Filled=0 Fill price=0 Error=OrderRejected Native error='[COLOR=Red][B]Buy stop or buy stop limit orders can't be placed below the market.[/B][/COLOR]'
2/4/2009 11:22:47 AM|0|32|[B][COLOR=Red]Buy stop or buy stop limit orders can't be placed below the market. Affected Order: BuyToCover 1 Stop @ 844.5[/COLOR][/B]