lsim transfer function input

Im trying to input the following fourier series (x) signal into my transfer function (H) with respect to time (tttime) using the the lsim function using the following code.

R=220;
a=.95;
C=1/(2*pi*5000*R);
num=[(R^2.*C^2) 0 1];
den=[(R^2.*C^2) (4.*R.*C.*(1-a)) 1];

H=tf(num, den);

%%Fourier Series

%ttfreqs = kw_o
%ttspect = Ck values
%tttime = time samples in seconds
%ttsignal = input signal

XM = repmat(ttspect.',[1, length(tttime)]);
basis = exp(1i.*ttfreqs.'*tttime);
x = sum(XM.*basis);
%plot(tttime,x);

lsim (H,x,tttime);

matlab is saying i have an error on my last line of code, whats the problem in here?

any help would appreciate it

thanks!

[Azzi Abdelmalek]

It's not posible to test your code

[Star Strider]

What is the error?

What are the values of ‘x’ and ‘tttime’?