There may be several reasons associated to uncaught ReferenceError and JQMIGRATE.
It depends upon the inclusion of jQuery library, structure of js file or even we need to ensure jquery is loaded properly before the script. It can sometimes be some server configuration difference and/or https issue. We’ve testd but we don’t get more information from developer tools so we need to test the plugin locally. Please attach the plugin file.
Add this css inside Dashboard>>Additional css to render the form visibility;