[Closed] Critical Error after Featured Image Translation

Background of the issue:
I am developing a site and using WPML for translations. My translations were working fine except for showing featured images in custom post types. I did the media translation following the documentation at https://wpml.org/documentation/getting-started-guide/media-translation/?utm_source=plugin&utm_medium=gui&utm_campaign=wpmlcore.

Symptoms:
I am getting a critical error on the translated pages after performing media translation. The error only occurs on the Spanish pages, while the main site works fine.

Questions:
Why am I getting a critical error on the translated pages after performing media translation?
How can I fix the critical error on the Spanish pages?