While you're completing a Mission you could find some songs with an "Undetermined" language
In these cases you can transcribe or proofread the lyrics, thus avoiding any need to report.
If, however, you're not able to transcribe the lyrics, you should report the task and select the language of the lyrics by following the steps below.
The task will be later reassigned to a new Curator who is a native speaker of the language in question.
If you don't know the language of the song, you can select the option "I don't know the language".
The first step is to click on the three dots on the top-right of the page, then select "Report a problem"
Then select "Wrong song language" and choose "I don't know the language" option.