says "already in the system" can't proceed with registration

Please see the video link below. This is just an example of how to go on with the registration.

https://storyxpress.co/video/kgkgtds2qy9vet8cf

1. Choose what form to register

2. Since you are already in our system, You can continue to login as shown in the video.

3. Proceed to your chosen form.