Need help with Youtube API3 to get existing items

I’m having some problems connecting to some fields

The channel logo gives me not found

I tried this method and it shows me the same problem (not found)

Also, the duration of the video gives me not found
Please help me solve this problem

We cannot guess whether your API query is responding correctly, and if so, we do not know its structure.

I’m sorry but I don’t understand what you mean because I don’t speak English. I use the translator

Did you mean this?

What is the content of global variable response?

use Do it to debug your blocks, see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing and Debugging