d:\Users\User\Desktop\Scriptv1 perfect\SSS\Script[ONLY TO YOU]\AMRP\gamemodes\NQRP.pwn(14974) : error 029: invalid expression, assumed zero

        if (newkeys & KEY_SUBMISSION))
        {
	    new string[128];
		new engine,lights,alarm,doors,bonnet,boot,objective,vehicleid;
		vehicleid = GetPlayerVehicleID(playerid);
		if(GetVehicleModel(vehicleid) == 481 || GetVehicleModel(vehicleid) == 509 || GetVehicleModel(vehicleid) == 510) return SendClientMessageEx(playerid,COLOR_WHITE,"This command can't be used in this vehicle.");
		GetVehicleParamsEx(vehicleid,engine,lights,alarm,doors,bonnet,boot,objective);
		if(engine == VEHICLE_PARAMS_ON)
		{
			SetVehicleEngine(vehicleid, playerid);
		}
		else if((engine == VEHICLE_PARAMS_OFF || engine == VEHICLE_PARAMS_UNSET))
		{
			SendClientMessageEx(playerid, COLOR_WHITE, "Vehicle engine starting, please wait...");
	        format(string, sizeof(string), "%s is attempting to turn the car on.", GetPlayerNameEx(playerid));
     		ProxDetector(30.0, playerid, string, COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE);
			SetTimerEx("SetVehicleEngine", 1000, 0, "dd",  vehicleid, playerid);
			return 1;
		}
	}