Dear Theja Sai,
The file manager reports that it can't find the needed integration script. That is an uncommon error. Could you, please, check the contents of the folder: {Motor-CAD install dir}\Motor-CAD Data\optiSLang\Integration\MotorCAD and see whether the file "MotorCAD_integration.py" is there (this one looks to be missing). If it is not there, please, reinstall Motor-CAD on your machine.
Kindest regards
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