I cant log in what is this

I tried to log in to my twitch account only to see this message:

“Oops! An unexpected error has occured. Please try again”
or
“Incorrect Username or Password”
please help me

FYI, this forum is for third party developer support. For site support, please use https://help.twitch.tv. There is an ongoing issue with the site: https://twitter.com/TwitchSupport/status/829398715500810252