"Unable to connect to messaging server. "

"Unable to connect to messaging server. "

This error comes in zoho docs, writer, show and sheets, and has no physical effect other than be annoying and cover up buttons at the top of the screen in zoho writer (such the three buttons in the top right).

How can I get rid of this?

Refreshing the page temporarily stops the error message, however in 30 seconds it reappears.