Below is the link about this finding.
The link with Karin ( ancient name of Erzurum) is the most likely version, but a possible link with Kars can't be ruled out also. The reason of this is that Kars is the plural form of Kar. While in Urartian Kar would give something like Karni or Karini.
Alternatively both Kars and Karin stem from the same root.