StaMPS matlab error step1 ps_info

Hi, I’m following the StaMPS tutorial. I have 6 patches, but I have run stamps(1,1) being INSAR_date the current folder, so I guess every patch is used. There were no errors in this step.
But then I run ps_info as suggested and this error appears:

Error using load
Unable to find file or directory 'psver'.

Error in ps_info (line 16)
load psver

I find this psver.mat file inside all the patch folders, but is not in the main INSAR_date folder. I guess it should be there? Why it is not there? Snaphu and TRAIN seem to be correctly installed by the way.