Strategy error messages

[sju10544]

Hi to all,

since I'm using NT 7 Beta21 with my automated strategies, I got some error messages you can see down below:

Strategy 'AutoTrader/d75c5724b6004316a1ddb3a213d02e3a' attempted to cancel an order with ID '1394377447' however, NinjaTrader has not yet received cancellation confirmation from your broker. Please check your account orders and position and take appropriate action.

An over fill was detected on order 'Order='1394377439/DU84266' Name='P1' State=Filled Instrument='TF 12-10' Action=SellShort Limit price=648.6 Stop price=0 Quantity=1 Strategy='AutoTrader' Type=Limit Tif=Gtc Oco='' Filled=1 Fill price=648.6 Token='21b6e958fa5f43c1900989cad732e345' Gtd='12/01/99 00:00:00'' generated by strategy 'AutoTrader/d75c5724b6004316a1ddb3a213d02e3a' : This strategy will be disabled and NinjaTrader will attempt to cancel/close any strategy generated orders and positions. Please check your account orders and positions and take any appropriate action.

It's hard to say at which point the error occurs, but IMO it comes, when I got a manually trade or, after I closed a left position (without stops and targets) and "re-apply" after this procedure the same strategy.
This error is new to me and only detected with NT7 - not with NT 6.5.
Any ideas?
Thanks for answering.

[NinjaTrader_Brett]

Hello,

We would like to take a look at your log/traces.

Can you please send me your trace files for today or the day that this occurred so that I may further assist. Please send these to support at ninjatrader dot com and reference this forum post.

You can find these files at the following locations, please attach these to a return email:

Start Menu--> My Documents--> NinjaTrader 7--> Trace--> trace.20100922 for today. (trace.yyyymmdd for any other date)

Start Menu--> My Documents--> NinjaTrader 7--> Log--> log.20100922 for today. (log.yyyymmdd for any other date)

I look forward to assisting you further.