I have keep having this error when trying to login in to my account.

This is either an issue with the server or an issue with your browser, where you are sending a request to login that includes too much information that the server cannot process at the moment.

You can try clearing your browser's cache and then trying to login again or starting a private browsing session, or using a different browser. If the problem persists, it may be a server related issue and you may have to wait a short while until the the
server connection is restored.

Hello,

I have the same issue as described above since this morning.

It might be account related more than Java version related as I am receiving the error message every time I try to login to the Java launcher (which was working fine as of yesterday).

When I try to login to minecraft.net with my microsoft account, same thing: I keep getting back to the login page.

Any additional ideas?

Im also geting the same error; for me it worked yesterday and today it gave me the error when i try to login into my account i tried what you said and still doesnt work. when i try to connect to a network the network gets connected and the internet does
too but it fails to connect to Xbox live. I have tried login in with other peoples account and doesnt let me either...

Hello!

as far as I know the Xbox is connected to the account on my console. I’m trying to login on my phone through the fortnite website, with my Xbox/microsoft account and it keeps saying error.

> When I try to login to minecraft.net with my microsoft account, same thing: I keep getting back to the login page.

Same! Following post.