Thread:Support/About MediaWiki:Mobile-frontend-settings-site-description/en

" is available in $1 NaN other languagess"

should either be

" is available in $1 NaN languagess"

or

" is available in $1 NaN other languagess"

to make sense. I translated it in the sense of the first proposed change, since if think that this was the intended meaning. However ...