unable to access call history via voicemail. Wheel just keeps spinning

I just duplicated this problem.  Yesterday, Cox sent corrupt Caller ID data, so I logged into my account to view my Call History:  My Account > Phone > Settings > Expand Call History...and it just spins.

I logged out, closed browser, cleared history, retried and it still spins.  I let it spin for an hour and it eventually displayed:  "We're experiencing technical difficulties..."

I tried again today, same thing.  I downloaded the .csv version of my Call History and except for the headers, it's empty.  Why is everything with Cox so difficult?