When I enter the website, it keeps glitching and loading a bunch of stuff, sometimes it gives me login errors multiple times and doesn't let me in. I have to try about 10 times to log in, and when I finally do, I can't change my cover and my nickname; the screen just reloads and goes back to the profile page. Sometimes it even shows that I haven't purchased Minecraft, but when I refresh the page again, it goes back to normal. I wanted to change my nickname to 'aweso' again.
I've tried another browser, another Wi-Fi, and another device, but the same error persists. Also, there's no one logged into my account or anything like that.