Chatbot Not Showing on Frontend

Hi thanks for the great plugin! I am struggling to get the Chatbot to display on the frontend though: https://excalibur.guide/try-chatgpt-for-free/

Not sure if the JS file is just now loading or something – please let me know if you can help or if I need to buy the Pro pluginf or this.

The page I need help with: [log in to see the link]