This error occurs when you exceed the maximum image length requirements of Amazon. Amazon doesn’t allow more than 10,000 pixels along the longest side of the image.
You need to make it compatible with Amazon by cropping the related images and sending an image refresh to the channel.
After cropping the images;
1- Upload the image by clicking “Add Image” from the “Images” tab after clicking edit.
2- Send image refresh update to the related product and sync the channel.