[Risolto] With stings that are already says it's a language but are written in another language

Background of the issue:
I'm trying to translate some strings from English to Catalan and Spanish on the site link nascosto using WPML. However, the string translation indicates that the strings are already in Catalan, even though they are written in English.

Symptoms:
The string translation says it's already Catalan, but it's written in English, so I can't translate it as there is no option to edit this string.

Questions:
Could you help with translating strings that are incorrectly marked as Catalan?
How can I edit strings that are marked as the wrong language?