error 035: argument type mismatch (argument 1)

stock GivePlayerMoneySave(playerid,money)
{
	if(strfind(money,"-",true) != -1)// <<<<< Hier ist der Fehler ? o_O
	{
		PlayerInfo[playerid][pCash] -= money;
		GivePlayerMoney(playerid, -money);
	}
    else
	{
		PlayerInfo[playerid][pCash] += money;
		GivePlayerMoney(playerid, money);
	}
	return 0;
}

stock GetPlayerMoneySave(playerid)
{
	return PlayerInfo[playerid][pCash];
}