Problem Loading a saved DIRART project

[I.Ramadaan]

I am getting the following MATLAB error when I try to load some of the
saved DIRART projects:

??? Attempted to access ys2(70); index out of bounds because
numel(ys2)=69.

Error in ==> RecoverImageAlignmentPoints at 27
c2 = [ys2(c2idxes(1)) xs2(c2idxes(2)) zs2(c2idxes(3))];

Error in ==> After_Loading_Saved_Project at 6
handles = RecoverImageAlignmentPoints(handles);

Error in ==> reg3dgui>Load_Entire_Data_Menu_Item_New at 2958
handles = After_Loading_Saved_Project(handles);

Error in ==> reg3dgui>Load_Entire_Data_Menu_Item_Callback at 2803
handles = Load_Entire_Data_Menu_Item_New(handles,mat);

Error in ==> gui_mainfcn at 96
feval(varargin{:});

Error in ==> reg3dgui at 82
gui_mainfcn(gui_State, vars{:});

Error in ==>
guidemfile>@(hObject,eventdata)reg3dgui('Load_Entire_Data_Menu_Item_Callback',hObject,eventdata,guidata(hObject))


??? Error while evaluating uimenu Callback


What is the cause of this error and how could I avoid it in the
future? Thank you.