Here, it explains how to check if the chat is working on Demo Page, but not erasing the tag from your site.
(1)Click the setting button on the upper right of the management page.
(2)Click [General Setting]>[Manage IP setting] on the left side of the screen.
(3)Check in the box "Hide the chat in specified URL" and enter site's domain in the box.
※If you want to designate multiple sites, punctuate with [,].
※For example, if you want to hide the chat in chatplus.jp, enter *chatplus.jp*. By entering「*」at first and end of the domain, you can set not to display the chat in URL including those domains.