Error Code 20011
This error is caused by copyright issues based on its main image. This error occurs when an image identified as a placeholder is submitted. Placeholder images include merchant logos and images of text such as "no image available" or "image coming soon." These invalid images often prevent the display of valid product images from other sources. Image update goes with product data update. But sometimes you can update just the image by clicking refresh image.
You must replace its image with a non-placeholder image and just send an Image Update to Amazon and Sync the channel.