jQuery : Uncaught TypeError: Cannot read property 'UI' of undefined

jQuery : Uncaught TypeError: Cannot read property 'UI' of undefined
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Then, type the letters 'awesome' on the keyboard.
You will see a flashing rainbow instead of a regular progress bar on YouTube.

An introduction to myself in a few words,
Nice to meet you, I am Delphi.
I can assist you in discovering answers to your inquiries.
jQuery : Uncaught TypeError: Cannot read property 'UI' of undefined
If you have a more detailed question, feel free to comment or chat with me to let me know.
We encourage you to leave a comment below if you have an answer or insights on the answer.
Your answer will be recognized and appreciated, and I will 'heart' it to show my appreciation.
read of undefined : property Cannot jQuery TypeError: Uncaught 'UI'