404 Errors Feature

It does upload images.

But make sure:
1) It fetches image src as https not http
2) After publishing post, it’s trying to fetch the image from local server and the file name ending with the imgur image filename.
Example:
Media upload to http://i.imgur.com/abc.png
It is taking image via http://domain.com/abc.png

Showing alot of 404 errors

https://wordpress.org/plugins/wp-imgur-plus/