Xfinity mobile account "we’re having trouble retrieving your data" -- can't access account info on mobile or browser

Title says it all. I'm unable to access anything under xfinity.com/mobile/my-account, although I can log in (and the My Account drop-down shows me a "log out" option).

Activity gives me:

"Sorry about this
We're having trouble retrieving your data. Refresh the page or check back in a few minutes to try again."

Billing just gives me a prompt to ask the Xfinity Assistant and shows nothing else.

Devices gives me:

"Something went wrong.
Trying this page again may help fix the problem."

And settings prompts the site to reload twice and gives me

"Something went wrong.
Trying this page again may help fix the problem."

with URL: https://www.xfinity.com/mobile/my-account/error?reason=account.settings.landing

...And logs me out.

Obviously this is an enormous problem as I can't do anything with my account. I see other people have posted with similar issues, and I'm confident that there will be a quick resolution. Thanks!