This issue should be resolved with macOS Ventura 13.2
I've had a similar problem with a client using an earlier operating system. We had to resort to Apple Tech Support on a telephone call.
Now that you've updated to the most recent operating system, I suggest signing out of your Apple ID and then signing in again. To do this, in System Settings tap your name. Scroll to the bottom of the pane and click Sign Out.
Note: if you use iCloud Drive for storage, or Mail, Contacts, Calendars, etc. you will be asked what you want to do with that data before logging out. Here's more info.
https://support.apple.com/guide/mac-help/sign-apple-settings-mac-mh36825/13.0/mac/13.0
If that doesn't clear the error, I would suggest calling Apple Support. They will connect you with the team that specializes in Apple ID. The geniuses at the stores are not allowed to do Apple ID stuff, so I'd start with a call.
It's not obvious where this app came from. According to the answer to this question, it probably is an app that was incompletely synced with iTunes.
There's nothing to worry about, and you don't need to do anything about it.
You can go to Settings-->General-->Storage&iCloud Usage-->Manage Storage. Then scroll down the apps to find null and delete it.
Please can you tell me where I can download Null’s Brawl for my iPhone 11 and then how to install it if is an IPA file? (The app I should use and how to do that) p.s. the Null’s brawl official site for iOS doesn’t work. Thanks to everyone that’ll help me 🫶
I run a habit tracker as an apple watch complication that now requires confirmation that reads: "Allow to access "(null")"?
This started a few months ago when I was on Beta but it continues now that I am no longer on Beta.
Any suggestions?