Impossible to connect live-export

Hello Mr. Takuya, after seeing your tuto on how to implement a blog using Astro and Nexjs i went ahead and decided to make my own starting just with Nextjs without using Astro. Everything works fine but as soon as i try to connect live-export i encounter and error. I looked at the instructions on the readme and i really don’t understand anythind about the error i’m encountering.

Can you show me the errors?