Channel with multiple words

I’ve seen this question asked before (https://wordpress.org/support/topic/when-name-of-channel-has-2-words?replies=4) but have not seen the solution. I have a Channel with multiple words, but it doesn’t display anything (actually breaks the site). How do I use the Channel ID instead? Note: I am using the Shortcode only.

https://wordpress.org/plugins/auto-last-youtube-video/