Error 0x80190005 occurs when you try signing in on your ...
You see the following error code when you try to sign in on your XBOX One console: This means that there’s either a service outage or a temporary issue associated with signing in to your Microsoft account. Try again later, or try the solution below. Check the XBOX status page.
Purchase settings for child accounts | XBOX Support
Sign in to your Family page with an adult Microsoft account. Find the child's name and select More options > Spending. Under the Ask to buy section, switch Needs organizer approval to buy things to Off. By default, the option Email me when they get stuff is set to On.