Software freezing problem

[oriondesign]

I'm having a frequent issue with my NT program freezing while online and running an automated strategy. It will work fine through most of the trading day, but then will freeze sometime after trading hours.
I'll check the program, and all the windows will be blank, and will say "Not Responding." The only way to fix is to close the program. Unfortunately, this is making it difficult to run my strategy testing in the simulator, since when I restart the program, I've lost all my simulated trade data.

Any idea what could be causing this?

[NinjaTrader_Dierk]

I would try to isolate by removing your strategy and see if NT still got stuck. You then might e.g. add the SampleMACrossOver strategy and see if NT then got stuck.

If it got stuck only with your strategy, then it's likely related to the code in your strategy. You then would start from scratch with your strategy simple-as-possible and add piece by piece until you finally see which of your code made the strategy stuck.