After installing this component, you need to setup the API key to https://randommer.io/

1. Go to https://randommer.io/
2. Register yourself using the Register button.
3. Click on the confirmation emails sent by randommer.io
4. Login to https://randommer.io/ 
5. Go to https://randommer.io/Identity/Account/Manage/ApiKey to get the API key
6. In your portal go to your application that used Randommer library, and on the configuration tab update the RandommerIoApiKey setting.