flag
The flag is right.
It doesn't seem to be english
It's definitely not English. I'll give it another two weeks. After that time, it should be changed to "unknown language" unless/until the proper language can be identified.
I assume, this sentence is meaningless. :)
Probably, Astyng recognized original Mari sentence (that hadn't have a flag in that moment) as Russian one. And he decided that "Ий" was a name, and "дене" was a specific thing, that doesn't have an English word for its name. So, he translated the sentence by the same way, like we can translate "У Тома проблема": "Tom has a problem". So, he obtained "Ii has a dene".
By the way, linked Russian sentence (and, probably, the original Mari sentence) means "Happy New Year!"