Setup message about 'polling frequency' not going away after doing full setup

The message below remains at the top of my admin panel despite doing a full Chat setup.

"You have installed the WordPress Chat plugin. Please review the polling interval settings before using. In most cases the default options will work for your host configuration. However, in some unique cases the polling interval is too frequent and could cause your hosting to shutdown your account. Once you have reviewed and saved the chat settings this message will no longer appear."

How can I remove it?