passcode error

I know my passcode, but whenever I put it in while logging in, AT&T gives me an error saying "e.content is undefined."  Google does not give an explanation.  I changed my passcode to a new one, but I get the same error.  The website allows me to continue, but says I won't be able to see everything about my account.  I'm using a Windows 10 PC. 

Suggestions?  Some setting I need to change?