[Konstantinos]

Use debug info (-d3) for getting the exact line caused it, all I can do at the moment is guessing:

pawn Код:

RazgovaraSa[ZoveGa[playerid]]
PozivZa[ZoveGa[playerid]]
// or
NaplatiPoziv[RazgovaraSa[playerid]]

so either ZoveGa[playerid] or RazgovaraSa[playerid] is -1.