Problem
You see an error message saying "Unable to close and classify call" when trying to close a call. This is often caused by a browser cache issue.
Solution
Clear your browser cache to fix the issue. Follow these steps:
Delete your browser cache
On your Chrome browser, go to Contact Center Pro.
Log out of your account.
At the top right, click More
and then Delete browsing data.On the new screen that opens, select Advanced.
From the Time range dropdown, select All time.
Select Cookies and other site data and Cached images and files.
Click Delete data.

Close all Chrome windows.
Restart your computer.
Open Chrome and log back into your account.
Caution: To help prevent this issue, ensure to completely close your browser window at the end of each workday.