This version of the plugin doesn’t really work and only makes the configuration more troublesome than it should…

After a couple of tries setting it up following the provided instructions, I gave up and went back to basics by using the “Insert Headers and Footers” plugin to add the code snippets available in my Freshchat account’s settings/integration page.

Notes on improvement:
In my view, this plugin is kind of useless as it stands. It should be simple as having a field to insert your Token. All the other content should be added automatically by the plugin itself.