[Konstantinos]

What kind of errors? A second parameter is needed for the amount of money

pawn Код:

forward SetPlayerVarMoney(playerid, cash);
public SetPlayerVarMoney(playerid, cash)
{
    PlayerInfo[playerid][pCash] += cash;
}

as well as when calling from a filterscript:

pawn Код:

CallRemoteFunction("SetPlayerVarMoney", "ii", playerid, cash_here);

EDIT: Sorry, didn't refresh the page.