Lito Yap
Ansys Employee

@Kasun Dissanayake

Do you have an evaluation license or accessing your organization's license server? 
Can you share the following? 
* Screenshot of your license configuration >> How to obtain a floating license – Ansys Optics 
* Screenshot of the Ansys License Manager > Display FlexNet license status >> Ansys license management center (overview) – Ansys Optics
* Screenshot of the error message.