Hello,
I think you are using the WPML plugin on the site.
Please go to WPML >> String Translation >> Click the scroll to the bottom of the page and click the Translate texts in admin screens link. https://cdn.wpml.org/wp-content/uploads/2021/03/translate-texts-in-admin-screens.png
This will take you to a searchable list of admin strings. Find the Words that you want to translate and then select those words and add them to the string Translation then you will go to the WPML >> String Translation >> then find and translate them into other languages.
Otherwise, send me the WP admin login details of your site so I will check it further and let you know the solution.
Best Regards