Link User email

Wondering if anyone can help please - I think I accidentally got rid of a function. I’ve blacked out the email addresses but one is my clients email and the other is a coach email, this no longer shows when inputting data which has a flow on effect and doesn’t show accurate data. How do I change it back so the email automatically computes?

Making a lot of assumptions here,but I’m assuming those are basic columns that you normally write the emails into and not a computed column that retrieves the emails from elsewhere.

I think you need to explain how those rows are created before we can advise how to get the the emails to populate.