Why website signs me out of an account ? (Minecraft Feedback)

I tried analysing some of the links: https://login.microsoftonline.com/consumers/oauth2/v2.0/logout?client_id=**********&kind=error&message=User+is+invalid%3A+Email%3A++mebegamin100%40zendesk.minecraft.net+has+already+been+taken&post_logout_redirect_uri=https%3A%2F%2Ffeedbacklogin.minecraft.net%2Flogout

What could this be connected to ?

Unfortunately, I don't have any further troubleshooting to offer. There are many knowledgeable users active on the forum and I hope that someone else can offer further insight on your issue.

Hey, Brilliant)

1. Clear your browser cache. => Didn't fix anything.

2. Use a different web browser. => Tried Microsoft's Edge browser and it shows the same issue.

3. Use a different device. => Tried connecting on my ASUS phone didn't fix this issue.

Hi. My name is Brilliant, an independent advisor, happy to assist you today.

Here are a few tips you can try to resolve your query:
1. Clear your browser cache.
2. Use a different web browser.
3. Use a different device.

Hello, Irtaza. Thanks for reaching out! My name is Lucas. I'm an Independent Advisor and a Microsoft user just like you. I'll be happy to assist you today.

If you sign in to the Minecraft website (https://www.minecraft.net) does it show you that you own Minecraft? Please sign in with both accounts and see which one is shown as being the owner of the game(s).

If the Minecraft website shows that one of the accounts own the game, please let me know.