This means that someone else already has taken ownership of the farm. Often it will be one of your employees or you have used another email address to log into MyAgroVision for a link to another third parity. If you can remember the other email address then try that one. If that does not work then send an email to support-uk@agrovision.com with a small description of what you are seeing and we will contact you to find a solution. Please also write in the email the long number.