Error Message: The given key was not present in the directory

[i2w8am9ii2]

Hello,

While using NT8 this morning, the following error message popped up multiple times:

The given key was not present in the directory

Screenshot attached.

What does that mean and do I need to do anything about it?

Thanks,

[NinjaTrader_DrewO]

Hello,

Thank you for contacting us to report this item.

So that I may investigate I would ask that you contact me by email at PlatformSupport [AT] NinjaTrader [DOT] com. In your message please include a link to this forum thread and a copy of today's trace files. You will find these diagnostic file in the Documents > NinjaTrader 8 > Trace folder. I will need to review a copy of the files which are named 'trace.20170316.XXXXX.txt'. There will likely be multiple files for each day.