ne vienas literally means "not one" or "not alone", and niekas means "nobody" or "nothing"

thank you! :) well, it was not via chat, but at an application,so it was unclear the way the person created it

Please, don't be confused: - ne vienas (not alone) - niekas (nobody) - nė vienas (no one) Communicating in the internet, most of Lithuanians still ignore original letters, like ''ė, ž, š...'' , and this is the case when the meaning might differ :)