Hello, please i'm facing this errors , how do i solve it?

[Sullivan Nnaji]

[Kasper Laudrup]

Hi Sullivan,

One of the fields in one of your models cannot be null, but one of your
views tries to update one of your models without specifying a value for
that field or is explicitly setting it to null.

Without any further context it's impossible to help you solve it.
Consider adding a bit of relevant context when you want someone to help
you. That will greatly improve your chances of getting a useful answer.

Kind regards,

Kasper Laudrup

[Sullivan Nnaji]

Thanks alot for coming to my aid, here is the codes, please help

[Sullivan Nnaji]