Hi there,
Thanks for contacting WPML support, I will be glad to help you.
Could you please tell me which update caused this issue? Do you mean WPML or another plugin?
Also, can you please check if you're using the correct URL of the translated logo?
I see a "404 not found" error when I visit the English logo URL (hidden link), so I suggest re-uploading the English logo image and using the new file's URL as a translation for the original logo.
Please try the following steps and let me know if that helps:
1. Get the original Logo URL from the media library
2. Go to WPML-> String Translation-> Translate Admin text
3. Search for the original logo URL
4. Add it to the String Translation
5. Go to WPML-> String Translation
6. Translate the original URL by adding the English version URL as a translation