Question: Error when using FourierTransform

with(DiscreteTransforms);
Digits := 600;
ss := 1:
windowlength := 50:
ma := []:
me := []:
counter1 := 1:
Z := Vector(windowlength, datatype = complex[8]);
Z5 := []:
for i from windowlength+ss to 1+ss by -1 do
eq2 := x:
eq2a := x*2:
god := solve(eq2a=y, t);
ma := [op(ma), evalf(subs(t=100, eq2a))]:
me := [op(me), 100]:
Z[counter1] := [Complex(evalf(subs(t=100, eq2a)),0)];
counter1 := counter1 + 1:
od:
Z2 := FourierTransform(Z);
Z5 := []:
for i from 1 to counter1 do
Z5 := [op(Z5),Re(Z2[i])]:
od:
p := dualaxisplot(listplot(Z, color = red), listplot(me, color = blue), style = line, gridlines = false):
p3 := dualaxisplot(listplot(ma, color = red), listplot(me, color = blue), style = line, gridlines = false):

> Z[counter1] := [Complex(evalf(subs(t = 100, eq2a)), 0)];
Error, unable to evaluate expression to hardware floats: [0.1395407376854069872222364799062994087470140319577366200576294159849633469734297167456440703192248821030980068084453175485138428545865904609881858312543669285411895851509107873579430804484462212873775830538595858575740816705029437533106045686220745333574567547827085763824574616984653193169818770743931611305635956093618789559193701301264280264321394773730076308141252308187470580964653518965117431518571850910086488220847415724949651796448259541027929735646487459091205173804995401770417274097230705447077344465381061736283732438996738107330437055827420813951050981604075837450139995544638...
> Complex(evalf(subs(t=100, eq2a));
Error, unable to match delimiters
Typesetting:-mambiguous(Complexlparevalf(subs(tequals100comma eq2a)),

  Typesetting:-merror("unable to match delimiters"))
> Complex(evalf(subs(t = 100, eq2a)), 0);
1.395407376854069872222364799062994087470140319577366200576294159849633469734\

  297167456440703192248821030980068084453175485138428545865904609881858312543\

  669285411895851509107873579430804484462212873775830538595858575740816705029\

  437533106045686220745333574567547827085763824574616984653193169818770743931\

  611305635956093618789559193701301264280264321394773730076308141252308187470\

  580964653518965117431518571850910086488220847415724949651796448259541027929\

  735646487459091205173804995401770417274097230705447077344465381061736283732\

                                                                               -571
  43899673810733043705582742081395105098160407583745013999554463814123790354 10   

   + 0. I