There are few things to check.
First, check the chat icon "behavior" setting at the Setup Admin area.
Another thing to check is if you have placed a chat icon exclude directive for the page. If you have done so, you will want to remove the exclude for the page or pages.
It may also be due to the server configuration. In these situations, try switching Off the image output "OB Clean" setting. To access the "OB Clean" setting, here is what you'll want to do:
If you do not see the "OB Clean" setting, you'll want to upgrade your PHP Live! system to the latest version. The latest version can be downloaded from the client area.
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