Hi uday04, I suggest you create a new Issue for the Engine Sim Toolkit CD on github here:
https://github.com/ni/niveristand-engine-simulation-toolkit-custom-device/issues
That will raise visibility of the error and give you an opportunity to provide some context, steps to reproduce that a developer could then use to better understand and then potentially address the problem.
best of luck,
Darin Gillis
NI - Chief Product Owner - VeriStand