You have to return to the manual of the Sentaurus software to see the cause of the hanging of the execution of the program.
This may be the systematic path to the solution.
May be a method to get rapidly acquainted to program is the study some of its tutorials especially those related to your device.
You will learn in a practical way how do you prepare an input simulation file for your device and how to run the simulation and how do you postprocess the results.
For the manual please look at the link: Sentaurus™ Device User Guide - ResearchGate