I am getting an Index in position 1 exceeds array bounds error

Hey

I am getting the following index error:

how can i fix this problem

clear all;

% Select the files
[files, path] = uigetfile('*info.*');
infoFile    = strcat(path,files);
cd(path);

[files, path] = uigetfile('*geom.*');
gemFile    = strcat(path,files);

[files, path] = uigetfile('*_E*.*', 'MultiSelect', 'on');

dataFileBxi = strcat(path,files{:,1});
dataFileBxr = strcat(path,files{:,2});

dataFileByi = strcat(path,files{:,3});
dataFileByr = strcat(path,files{:,4});

dataFileBzi = strcat(path,files{:,5});
dataFileBzr = strcat(path,files{:,6});

cd('F:\E-field_matlab');

% Read Data

[dataBx, dataBy, dataBz]= ReadData(infoFile, gemFile, dataFileBxr, dataFileBxi, dataFileByr, dataFileByi,dataFileBzr, dataFileBzi);

% dataBxr=real(dataBx);
% dataBxi=imag(dataBx);
% Bx=dataBxr.*dataBxi;
% dataByi=imag(dataBy);
% dataByr=real(dataBy);
% By=dataByr.*dataByi;
% dataBzr=real(dataBz);
% dataBzi=imag(dataBz);
% Bz=dataBzr.*dataBzi;

%%
x = abs(dataBx);
y = abs(dataBy);
z = abs(dataBz);

 img = sqrt(x.*x + y.*y+z.*z);
% d=img((1:7),(1:13));
% a=flipud(d);
% img((11:17),(1:13))=a;

d=img((2:8),(1:20));
a=flipud(d);
img((11:17),(1:20))=a;
data=img(4:16,3:22);
% d=img((2:8),(1:39)); 
% a=flipud(d);         
% img((13:19),(1:39))=a; 
% data=img;
 
[X,Y]=meshgrid(1:size(data,2), 1:size(data,1));
[X2,Y2] = meshgrid(1:0.001:size(data,2), 1:0.001:size(data,1));
outData = interp2(X, Y, data, X2, Y2, 'cube');
img_size = size(img);
imagesc(outData);
colormap(jet(255))
set(gca, 'XTick', linspace(1,size(X2,2),size(X,2)));
set(gca, 'YTick', linspace(1,size(X2,1),size(X,1)));
set(gca, 'XTickLabel', 1:size(X,2));
set(gca, 'YTickLabel', 1:size(X,1));
axis off
% clims = [min(min(img)) max(max(img))*1.5E-1];