JS conflict: Uncaught TypeError

I love this plugin but I am getting this error:
black-studio-tinymce-widget.min.js:2 Uncaught TypeError: Cannot set property ‘selector’ of undefined
v2.2.4
Using Multisite + Visual Composer Plugin

Thanks for your help!

https://ww.wp.xz.cn/plugins/black-studio-tinymce-widget/