Official Lithuanian Basketball Players Medal Collection - missing tokens

Not all tokens of this series are present in the catalog, namely:

Artūras Karnišovas

Arvydas Sabonis

Darjušas Lavrinovičius

Donatas Motiejūnas

Kšištofas Lavrinovičius

Modestas Paulauskas

Saulius Štombergas

Sergejus Jovaiša

Please add them or tell me how I can add them myself. Thank you.

A coin, a banknote or a piece of exonumia is missing in the Numista catalogue: what can I do?