Default feed category image not working

Hi,

I added the url below for my category, but no images are being imported with the feed.

http://69.89.31.167/~popfixn1/wor1/wp-content/uploads/2014/02/espn.png

Any idea why this is not working?

https://ww.wp.xz.cn/plugins/wp-rss-multi-importer/