Hi everyone
I'm using GIFT toolbox for group ICA. I want to test Constrained(Spatial) method that is in the GUI of GIFT toolbox. I think I have problem when I the toolbox asks me to choose a mask. 
When I run analysis I get the below errors:

Group ICA Error Information:

Error using schur
Input to SCHUR must not contain NaN or Inf.
Error in ==> sqrtm at 32
Error in ==> icatb_multi_fixed_ICA_R_Cor at 67
Error in ==> icatb_icaAlgorithm at 154
Error in ==> icatb_parICAReference at 52
Error in ==> parICAReference at 764
Error in ==> icatb_calculateICA at 197
Error in ==> icatb_runAnalysis at 414
Error in ==> runAnalysis_Callback at 95
Error in ==> gui_mainfcn at 95
Error in ==> gift at 30
......................................
Error using icatb_displayErrorMsg (line 23)
Error in icatb_runAnalysis (line 535)
icatb_displayErrorMsg;
Error in gift>runAnalysis_Callback (line 95)
icatb_runAnalysis;
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in gift (line 30)
gui_mainfcn(gui_State, varargin{:});
Error while evaluating UIControl Callback




Please help me in that