When entering in the positions of company entities, you will not be able to proceed without listing a person as a applicant.
An applicant is the person who is completing the application.
If you have already entered in the entities and the screen is showing you an error and not letting you proceed to the next step, here is how to enter in an applicant:
1. Click 'update' on the individual who you want to be the applicant
2. Then it will allow you to update that person's details. Go up to the top where their are the boxes of positions which can be ticked.
3. Tick the applicant box for that individual
4. Then press continue
You should now be able to proceed with the application.