Dear NiiStat community,

I'm trying to run NiiStat with lesion masks for VLSM analysis
I created the .mat files and the excel file with the behavioral data (attached).
However when I try to run NiiStatGui i get a matlab error:

Error using save
Unable to write file C:\Program Files\MATLAB\R2019b\NiiStat-master\NiiStatGUI\niistatGUI_cfg.mat: permission denied.

Error in NiiStatGUI/GOButtonPushed (line 444)
save(fullfile(filepath,'niistatGUI_cfg.mat'),'GUIdata');

Error using matlab.ui.control.internal.controller.ComponentController/executeUserCallback (line 382)
Error while evaluating Button PrivateButtonPushedFcn.

I precise that I used Windows 10, Matlab R2019b, SPM12.

Thank you in advance for your help

Julie Vidal