Hmm... just quit and come back, if it doesn't work, then just restart your computer, if that doesn't work either, hmm... maybe just keep trying..
xpaw.ru/mcstatus . If the multiplayer authentication servers are off, you cannot join any servers. If you see the numbers for player count rising, it's an issue on your side. If they are steady/decreasing and not rising, it's an issue with the Mojang authentication servers. EDIT - The authentication servers are online, it's an issue on your side unfortunately.
I searched it up on youtube, and there is this guy that said it was his antivirus that was blocking minecraft, he uninstalled, and everything worked fine.. Idk
The account is still active, I can login to mojang. But when I try to login to minecraft.net I get this error: