Hello Hamed
It seems to be a problem with the model kit.
Did you install the high RF power model kit before using the single product model?
Models for Cadence® AWR® Microwave Office® SoftwareOur models are two part :
RF High power Model Kit
Product Model Design Kit
Both parts are required to simulate device.
Could you uninstall and install both?, RF High power Model Kit first.
I've attached a document that will help guide you through the installation. It also has a troubleshooting section that might help you if you suddenly encounter an error.
I hope this information has helped you, please let me know if you need help with anything else.
Have a great day and best of luck.