Microsoft Account hasn't been working for a few days/ Java Edition doesn't work

I got Windows 10 Edition three days ago, and everything loaded smoothly. I signed into my Microsoft account but it said there was an error and I couldn't use the Marketplace, and to report the issue if it persisted. Well, it did :/ I've signed in and out and nothing changed. I can still make worlds and play but I can't join my friends, join servers or change my avatar.

Ever since I got Windows 10 Edition, the Java launcher has stopped responding when I try to launch it. Java was working fine until I got Windows 10 Edition. Maybe it's because of the issue with my Microsoft account? I'm not tech savvy at all so thanks for trying to help! ｡ﾟ(ﾟ∩´ᴗ`∩ﾟ)ﾟ｡