Unable to import. Plugin is broken.

Yeah, it seems to have broken with the new WP update. I no longer maintain this plugin, but I’ll look into it briefly.

It is working fine. It is possible that you are missing the js folder and files. Please deactivate and delete the version you have now and re-install the plugin. All files should be present and it should work. There may have been a time during an update where I incorrectly or partially updated the repository and you just happened to get that version.