What mean for the "Errors" counter does by NTTTCP test tool?

Hi sir,

I've tried to run the NTTTCP tool overnight(12hrs) to ensure the system network(onboard Intel X710-AT2 controller with two 10G RJ45 ports) stability, the test setup is just connect two same server system which is with the same MB and same Intel X710-AT2 onboard controller, and connect the RJ45 port between two systems thru a RJ45 cable, and run NTTTCP tool on both systems.

After the test, I found the value of "Errors" is "261"(as below screenshot).

I've tried to google about the NTTTCP error counters but could not able get any useful information, so I post the question here since the tool is developed by Microsoft, what does the "Errors" mean and how I can resolve this errors?

Here is another screenshot of another run(5 minutes) with the command line, it also gets 9 error counters.

Thanks,

Jacky