Why do I see this message? PREMIUM

Why do I see this message?

Each of our visuals can be found in the Microsoft Appsource and allows a Creator to evaluate and test all functionality from within Power BI Desktop reports. If you (as a Creator) want to share the reports containing our visuals with other people within your organisation (with Power BI Service) you require a valid license. 

You have published a report containing one of our visuals to Power BI Service, but unfortunately the visual lacks a valid license. Please add your license information to the respective visual(s). No license yet? Please visit our shop where you can purchase a license.