As you can see above, it is the main translation. Most likely, you had some typo. Always double- or even triple-check your answer and if you can't see a problem use the report button.
I had to remove tens of invalid reports. Mostly "man" instead of "men", "woman" instead of "women", "an" instead of "and" and similar. We have hundreds (in on skill) or thousands (in the whole course) of reports like this. It takes most of our time when looking into reports.