I can see an error message

What error message can you see?

• 'The username or password that you've entered is incorrect.'
• 'Your password is correct, but we no longer support signing in with your YouTube username.'
• 'Authentication error'
• 'An error occurred'
• 'Your browser's cookie functionality is turned off. Please turn it on.'
• 'There was an issue signing you in to YouTube'
• 'Sorry, your account has been disabled'
• 'An update to your account is required'