Can someone fix this script, an error keep popping up

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#StudyName: RSI_Laguerre_Lines_wTargets
#Version/Date: v1 5/30/17
#TOS.mx Link:
#Type: [Study]
#Description: RSI in Laguerre Time MTF plotted on Upper chart
#Author: jcseattle
#Copyright: Copyright jcseattle/amalia 2016. All rights reserved.
#Copyleft: This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version. See <http://www.gnu.org/licenses/>
#Requested By: ""
#History: Ver Date Auth Change
#First draft v1 5/30/17 jcseattle - No changes
# Notes :Based off original script in
# RSI in Laguerre Time MTF Option_v3
# Mobius
# V02.07.2014
# translation of J Elher's code
# Annotation : ""
# Trading Notes : ""

# Start Code

def na = Double.NaN;
script R {
input gamma = .2;
input usecandletype = {candle_hybrid, default candle};
input usehigheraggperiod = {default "Current", "Higher"};
input outputformat = {default Rounded, "Not Rounded"};
;#Hint outputformat: 'Not Rounded' is used for notes, bonds (eg: 109'110), forex, etc type format.
input atrlength = 21;
input agg = AggregationPeriod.TWO_MIN;
input overbought = .8;
input oversold = .2;
def o;
def h;
def l;
def c;
def CU1;
def CU2;
def CU;
def CD1;
def CD2;
def CD;
def L0;
def L1;
def L2;
def L3;
plot RSI;
plot OS;
plot OB;
def error = usehigheraggperiod == usehigheraggperiod."Higher" and GetAggregationPeriod() > agg;
switch (usehigheraggperiod) {
case Current:
if usecandletype == usecandletype.candle_hybrid {
o = (open + close[1]) / 2;
h = Max(high, close[1]);
l = Min(low, close[1]);
c = (o + h + l + close) / 4;
} else {
o = open;
h = high;
l = low;
c = close;
}
case Higher:
if error {
o = Double.NaN;
h = Double.NaN;
l = Double.NaN;
c = Double.NaN;
} else {
if usecandletype == usecandletype.candle_hybrid {
o = (open(period = agg) + close(period = agg)[1]) / 2;
h = Max(high(period = agg) , close(period = agg)[1]);
l = Min(low(period = agg) , close(period = agg)[1]);
c = ((open(period = agg) + close(period = agg)[1]) / 2
+ Max(high(period = agg), close(period = agg)[1])
+ Min(low(period = agg) , close(period = agg)[1])
+ close(period = agg)) / 4;
} else {
o = open(period = agg);
h = high(period = agg);
l = low(period = agg);
c = close(period = agg);
}
}
}
L0 = (1 – gamma) * c + gamma * L0[1];
L1 = -gamma * L0 + L0[1] + gamma * L1[1];
L2 = -gamma * L1 + L1[1] + gamma * L2[1];
L3 = -gamma * L2 + L2[1] + gamma * L3[1];
if L0 >= L1
then {
CU1 = L0 - L1;
CD1 = 0;
} else {
CD1 = L1 - L0;
CU1 = 0;
}
if L1 >= L2
then {
CU2 = CU1 + L1 - L2;
CD2 = CD1;
} else {
CD2 = CD1 + L2 - L1;
CU2 = CU1;
}
if L2 >= L3
then {
CU = CU2 + L2 - L3;
CD = CD2;
} else {
CU = CU2;
CD = CD2 + L3 - L2;
}

RSI = if IsNaN(close) then Double.NaN
else if CU + CD <> 0
then CU / (CU + CD) else 0;
OS = if IsNaN(close)
then Double.NaN else oversold;
OB = if IsNaN(close)
then Double.NaN
else overbought;
def mid = if IsNaN(close) then Double.NaN else 0.5;
def lineh = 1.2;
def linel = -.2;

# End Code Basic RSI Laguerre - Author: Mobius

}

def Up = if R() crosses above R().OS then 1 else 0;
def u = if R() crosses above R().OB then 1 else 0;

def Dn = if R() crosses below R().OB then 1 else 0;
def d = if R() crosses below R().OS then 1 else 0;

def Green = if Up
#or u
then low else 0;
def Red = if Dn
#or d
then high else 0;

def showLines = 1;


def trendchange = if Green then low else if Red then high else trendchange[1];

def PL = if !IsNaN(trendchange)
then trendchange
else PL[1];

plot pivotLine = if PL > 0
then PL
else Double.NaN;
pivotLine.SetPaintingStrategy(PaintingStrategy.LINE);
pivotLine.SetHiding(!showLines);

input showArrows = yes;
plot ArrUp = if showArrows and Green then low else 0;
ArrUp.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_UP);
ArrUp.SetDefaultColor(Color.GREEN);

plot ArrDn = if showArrows and Red then high else 0;
ArrDn.SetPaintingStrategy(PaintingStrategy.BOOLEAN_ARROW_DOWN);
ArrDn.SetDefaultColor(Color.RED);

pivotLine.AssignValueColor(if R() < R().OB then Color.RED else if R() > R().OS then Color.GREEN else Color.BLACK);

input ShowLabels = yes;
#Multipliers for ATR targets
input firsttgt = 1.618;
input secondtgt = 3.447;
input thirdtgt = 4.25;
input ATRLength = 8;#default is 14

def agg = if GetAggregationPeriod() > AggregationPeriod.FIFTEEN_MIN then GetAggregationPeriod() else AggregationPeriod.FIFTEEN_MIN;#You can edit this to just (GetAggregationPeriod())
def ATR = Average(TrueRange(High(period = agg),Close(period = agg),Low(period = agg)),ATRLength);
addlabel(ShowLabels, "ATR = " + Round((ATR) / TickSize(),0)*TickSize(), Color.GRAY);

input showStrategy = yes;
def co = if PL[1] and R()[1] > R().OS[1] then 1 else 0;
def firstlongtarget = if co then (PivotLine + ATR*firsttgt) else 0;
def secondlongtarget = if co then (PivotLine + ATR*secondtgt) else 0;
def thirdlongtarget = if co then (PivotLine + ATR*thirdtgt) else 0;

def sto = if PL and R() < R().OB then 1 else 0;
def firstshorttarget = if sto then (PivotLine - ATR*firsttgt) else 0;
def secondshorttarget = if sto then (PivotLine - ATR*secondtgt) else 0;
def thirdshorttarget = if sto then (PivotLine - ATR*thirdtgt) else 0;


# Internal Script Reference
# Author: Mobius

def LineLimit = 30;
def Detrend = 0;
def OnExpansion = yes;
def data = firstlongtarget;
def bar = 0;
def ShowAllPlots = 0;
def ThisBar = HighestAll(bar) - Detrend;
def cLine = if ShowAllPlots == 0
then if bar == ThisBar
then data
else Double.NaN
else data;
def cond1 = CompoundValue(1, if IsNaN(data)
then cond1[1]
else data, data);
def P = if ShowAllPlots == 0
then if ThisBar - LineLimit <= bar
then HighestAll(cLine)
else Double.NaN
else cLine;
plot firstLTarget = if OnExpansion and
IsNaN(data[-1])
then cond1
else Double.NaN;
firstLTarget.SetDefaultColor(Color.GREEN);
addlabel(ShowLabels, if R() > R().OS then "Long Target = " + Round((firstLTarget) / TickSize(),0)*TickSize() else "", Color.GREEN);
AddChartBubble(IsNaN(close) and !isNaN(close[1]),
firstLTarget,
"First Target = " + Round((firstLTarget) / TickSize(),0)*TickSize(),
Color.GREEN,
yes);

def difflongtarget = if close < firstlongtarget then (firstlongtarget - close) else (close - firstlongtarget);
addLabel(ShowLabels, if R() > R().OS then "Diff 1st L tgt = " + (Round((difflongtarget) / TickSize(),0)*TickSize()) else "", Color.LIGHT_GREEN);


def LineLimit3 = 30;
def Detrend3 = 0;
def OnExpansion3 = yes;
def data3 = secondlongtarget;
def bar3 = 0;
def ShowAllPlots3 = 0;
def ThisBar3 = HighestAll(bar) - Detrend;
def cLine3 = if ShowAllPlots3 == 0
then if bar3 == ThisBar3
then data3
else Double.NaN
else data3;
def cond3 = CompoundValue(1, if IsNaN(data3)
then cond3[1]
else data3, data3);
def P3 = if ShowAllPlots3 == 0
then if ThisBar3 - LineLimit3 <= bar3
then HighestAll(cLine3)
else Double.NaN
else cLine3;
plot secondLTarget = if OnExpansion3 and
IsNaN(data3[-1])
then cond3
else Double.NaN;
secondLTarget.SetDefaultColor(Color.GREEN);
addlabel(ShowLabels, if R() > R().OS then "2nd Long Target = " + Round((secondLTarget) / TickSize(),0)*TickSize() else "", Color.GREEN);
AddChartBubble(IsNaN(close) and !isNaN(close[1]),
secondLTarget,
"2nd Long Target = " + Round((secondLTarget) / TickSize(),0)*TickSize(),
Color.GREEN,
yes);

def difflongtarget2 = if close < secondlongtarget then (secondlongtarget - close) else (close - secondlongtarget);
addLabel(ShowLabels, if R() > R().OS then "Diff 2nd L tgt = " + Round((difflongtarget2) / TickSize(),0)*TickSize() else "", Color.LIGHT_GREEN);


def LineLimit9 = 30;
def Detrend9 = 0;
def OnExpansion9 = yes;
def data9 = thirdlongtarget;
def bar9 = 0;
def ShowAllPlots9 = 0;
def ThisBar9 = HighestAll(bar9) - Detrend9;
def cLine9 = if ShowAllPlots9 == 0
then if bar9 == ThisBar9
then data9
else Double.NaN
else data9;
def cond9 = CompoundValue(1, if IsNaN(data9)
then cond9[1]
else data9, data9);
def P9 = if ShowAllPlots9 == 0
then if ThisBar9 - LineLimit9 <= bar9
then HighestAll(cLine9)
else Double.NaN
else cLine9;
plot thirdLTarget = if OnExpansion9 and
IsNaN(data9[-1])
then cond9
else Double.NaN;
thirdLTarget.SetDefaultColor(Color.GREEN);
addlabel(ShowLabels, if R() > R().OS then "3rd Long Target = " + Round((thirdLTarget) / TickSize(),0)*TickSize() else "", Color.GREEN);
AddChartBubble(IsNaN(close) and !isNaN(close[1]),
thirdLTarget,
"3rd Long Target = " + Round((thirdLTarget) / TickSize(),0)*TickSize(),
Color.GREEN,
yes);

def difflongtarget9 = if close < thirdlongtarget then (thirdlongtarget - close) else (close - thirdlongtarget);
addLabel(ShowLabels, if R() > R().OS then "Diff 3rd L tgt = " + Round((difflongtarget9) / TickSize(),0)*TickSize() else "", Color.LIGHT_GREEN);


def LineLimit2 = 30;
def Detrend2 = 0;
def OnExpansion2 = yes;
def data2 = firstshorttarget;
def bar2 = 0;
def ShowAllPlots2 = 0;
def ThisBar2 = HighestAll(bar2) - Detrend2;
def cLine2 = if ShowAllPlots2 == 0
then if bar2 == ThisBar2
then data2
else Double.NaN
else data2;
def cond2 = CompoundValue(1, if IsNaN(data2)
then cond2[1]
else data2, data2);
def P2 = if ShowAllPlots2 == 0
then if ThisBar2 - LineLimit2 <= bar2
then HighestAll(cLine2)
else Double.NaN
else cLine2;
plot firstSTarget = if OnExpansion2 and
IsNaN(data2[-1])
then cond2
else Double.NaN;
firstSTarget.SetDefaultColor(Color.RED);
addlabel(ShowLabels, if R() < R().OB then "1st Short Target = " + Round((firstSTarget) / TickSize(),0)*TickSize() else "", Color.RED);
AddChartBubble(IsNaN(close) and !IsNaN(Close[1]),
firstSTarget,
"Short Target = " + Round((firstSTarget) / TickSize(),0)*TickSize(),
Color.RED,
no);

def diffshorttarget = if close < data2 then (data2 - close) else (close - data2);
addLabel(ShowLabels, if R() < R().OB then "Diff 1st S tgt = " + Round((diffshorttarget) / TickSize(),0)*TickSize() else "", Color.LIGHT_RED);
#

def LineLimit4 = 30;
def Detrend4 = 0;
def OnExpansion4 = yes;
def data4 = secondshorttarget;
def bar4 = 0;
def ShowAllPlots4 = 0;
def ThisBar4 = HighestAll(bar4) - Detrend4;
def cLine4 = if ShowAllPlots4 == 0
then if bar4 == ThisBar4
then data4
else Double.NaN
else data4;
def cond4 = CompoundValue(1, if IsNaN(data4)
then cond4[1]
else data4, data4);
def P4 = if ShowAllPlots4 == 0
then if ThisBar4 - LineLimit4 <= bar4
then HighestAll(cLine4)
else Double.NaN
else cLine4;
plot secondSTarget = if OnExpansion4 and
IsNaN(data4[-1])
then cond4 #
else Double.NaN;
secondSTarget.SetDefaultColor(Color.RED);
#Round((close + (atr)) / TickSize(), 0) * TickSize()
addlabel(ShowLabels, if R() < R().OB then "2nd Short Target = " + Round((secondSTarget) / TickSize(),0)*TickSize() else "", Color.RED);
AddChartBubble(IsNaN(close) and !IsNaN(Close[1]),
secondSTarget,
"2nd Short Target = " + Round((secondSTarget) / TickSize(),0)*TickSize(),
Color.RED,
no);

def diffshorttgt2 = if close < secondshorttarget then (secondshorttarget - close) else (close - secondshorttarget);
addLabel(ShowLabels, if R() < R().OB then "Diff 2nd S tgt = " + Round((diffshorttgt2) / TickSize(),0)*TickSize() else "", Color.LIGHT_RED);

def LineLimit8 = 30;
def Detrend8 = 0;
def OnExpansion8 = yes;
def data8 = thirdshorttarget;
def bar8 = 0;
def ShowAllPlots8 = 0;
def ThisBar8 = HighestAll(bar8) - Detrend8;
def cLine8 = if ShowAllPlots8 == 0
then if bar8 == ThisBar8
then data8
else Double.NaN
else data8;
def cond8 = CompoundValue(1, if IsNaN(data8)
then cond8[1]
else data8, data8);
def P8 = if ShowAllPlots8 == 0
then if ThisBar8 - LineLimit8 <= bar8
then HighestAll(cLine8)
else Double.NaN
else cLine8;
plot thirdSTarget = if OnExpansion8 and
IsNaN(data8[-1])
then cond8
else Double.NaN;
thirdSTarget.SetDefaultColor(Color.RED);
addlabel(ShowLabels, if R() < R().OB then "3rd Short Target = " + Round((thirdSTarget) / TickSize(),0)*TickSize() else "", Color.RED);
AddChartBubble(IsNaN(close) and !isNaN(close[1]),
thirdSTarget,
"3rd Short Target = " + Round((thirdSTarget) / TickSize(),0)*TickSize(),
Color.RED,
no);

def diffshorttarget3 = if close < thirdshorttarget then (thirdshorttarget - close) else (close - thirdshorttarget);
addLabel(ShowLabels, if R() < R().OB then "Diff 3rd S tgt = " + Round((diffshorttarget3) / TickSize(),0)*TickSize() else "", Color.LIGHT_RED);

#Inputs:
input nFE = 34;#hint nFE: length for Fractal Energy calculation.
input PriceColor = yes;
plot gamma1 = Log(Sum((Max(high, close[1]) - Min(low, close[1])), nFE) /
(Highest(high, nFE) - Lowest(low, nFE))) / Log(nFE);
gamma1.AssignNormGradientColor(nFE, Color.GREEN, Color.RED);
gamma1.SetLineWeight(2);

addLabel(showlabels, if showlabels and gamma1 < 0.382 then "Trending =" + gamma1 else if gamma1 > 0.618 then "Non-Trending =" + gamma1 else "FE = " + gamma1, if gamma1 < 0.382 then Color.WHITE else if gamma1 > 0.618 then Color.CYAN else Color.GRAY);

AssignPriceColor(if PriceColor and gamma1
#crosses below
<
.382 then Color.WHITE else if PriceColor and gamma1
#crosses above
.618 then Color.CYAN else Color.CURRENT);

#End Code
 

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