Before you proceed this checkout purchasing forex robot Horizon - Make sure you provide the right details about your broker account! In the field 'Registered broker name' enter your full name as registered with your broker. This name will be used to setup your licens and needs to match without errors otherwise your licens will fail when installed and loaded to the chart!
In your MT4 terminal you'll find the information needed as seen on this picture:
|Registered broker name|