Hmm, the page didn't load correctly

Hey there, every time I login in the xfinity website, I cannot access my account. The page (https://customer.xfinity.com/?beta=1) shows only

Hmm, the page didn't load correctly

Refresh page

However after click reference page, the page doesn't show any changes. I thought this is because I didn't set up the two-step verification. However, I cannot use both options from the page from https://www.xfinity.com/support/articles/enroll-2-step-verification because I cannot access the account information. 

Please help!!!!