Hi,
It happens, if the script is not properly initialized or a 3rd party plugin is removing the init script from the page, or there is a script error somewhere causing further execution.
Try changing the javascript compatibility settings to minified-scoped under the Compatibility settings submenu: https://i.imgur.com/H65YhT7.png
Also, make sure to clear the site cache, once the plugin is activated to make sure the scripts are included. If nothing helps, you can add temporary FTP access to your ticket, and I will check out the issue directly via the code. Thank you!