Here, it explains how to check if the chat is working on Demo Page, but not erasing the tag from your site.
(1) Click on the setting button on the upper right of the management page.
(2) Click on [General Setting]>[Manage IP setting] on the left side of the screen.
(3) Check in the box [Hide the chat in a specified URL] and enter site's domain in the box. ※If you want to designate multiple sites, punctuate with [,].
(4) Click on [Update].