Problem with register the User in admin

[reniboyanova]

@reniboyanova

(
            'Personal info',
            {
                'fields': (
                    'first_name',
                    'last_name',
                    'email',
 
                ),
            },
        ),

Ok, but our teacher showed us like this and I am really confused.
I do it like this and again when I click on some of the users in admin I have this error:

When I want to add

FieldError at /admin/accounts/appbaseuser/add/

Unknown field(s) (firs_name, last_name, is_active, position, date_joined) specified for AppBaseUser. Check fields/fieldsets/exclude attributes of class AppBaseUserAdmin

And when I click in the existing one:

this is how I do it now, I really can’t understand how to give permission in this situation. I don’t want to change users from the scratch. My code now:

@admin.register(UserModel)
class AppBaseUserAdmin(admin.ModelAdmin):
    add_form= RegistrationAppUserForm

    fieldsets = (
        (
        (
            'Permissions',
            {
                'fields': (
                    'is_active',
                    'is_staff',
                    'is_superuser',
                    'groups',
                    'user_permissions',
                ),
            },
        ),
        (
            'Personal info',
            {
                'fields': (
                    'firs_name',
                    'last_name',
                    'position',

                ),
            },
        ),
        (
            'Important dates',
            {
                'fields': (
                    'last_login',
                    'date_joined',
                ),
            },
        ),
    ))