Cannot access My Account on Xfinity Website (A communication error has occured.)

Hi, I have been trying to log into the Xfinity website and check my account info. But every time when I clicked "View My Bill" or "Account Setting", the website redirects me to the log in page. I will then type my password and try logging in again, but then the system will tell me a communication error has occurred, and redirect me back to the log in page. It is like an endless loop, and I was unable to perform any function using the website. Can you please help fix my problem asap because I need to schedule a move very soon. Thank you very much!