[Cerrado] translating media

Background of the issue:
I am trying to switch the logo from English to Spanish on my site enlace oculto using WPML. I am following the documentation at https://wpml.org/documentation/getting-started-guide/media-translation/. When selecting the image for translation, it asks me to upload the image, which is already in the media folder.

Symptoms:
I upload the image again but it gives the message 'Could not calculate resized image dimensions'. Both images are the same size and I am unable to save.

Questions:
Why does WPML ask me to upload an image that is already in the media folder?
How can I resolve the 'Could not calculate resized image dimensions' error when uploading an image for translation?