[LetsOWN[PL]]

Ah, it's littile mistake

Replace

Код:

format(msg, 300, "Telefono numeris: %i\nExp: %i\nGaujos Id: %i\nGaujos pavadinimas: %d",telnr,xp, gid,gangDB[gid][gvardas]);

instead of

Код:

format(msg, 300, "Telefono numeris: %i\nExp: %i\nGaujos Id: %i\nGaujos pavadinimas: %s",telnr,xp, gid,gangDB[gid][gvardas]);

The mistake was here: Gaujos pavadinimas: %d
%d is for numerical things (eg ID)
%s is for strings (name, localization, city, etc)