Why I can't deploy my Gatsby app?

Hello Everyone, I just finished course from Zachary Reece, and I make all what he is doing, but for me shows an error and I can’t deploy my app in Netlify.

My netlify site name is : https://deft-bavarois-080da4.netlify.app/

My error is: “gatsby-source-strapi” threw an error while running the sourceNodes lifecycle:
12:29:20 AM: failed to process

When I try to upload picture in this link, strapi not allowed me… any idea?

Thank you

The site and the image, both seem to be deleted.