Help with a database issue

I had a field that was duplicated in several sections of the demo layout. I downloaded all of the patient table and deleted the extra fields and now when I select a patient I now get unknown. These were required fields but not any of the pid fields. I thought it would be o.k. to delete a field that I didn’t need.

I can be of help if you provide screenshots. Just make sure not to post any PHI

I restored a backup but really need to get rid of those fields. I am going to do one at a time on a test database. I am just confused because these fields were not linked to anything else.