Error in mean velocity and time series plotting of PSInSAR in StaMPS

Microwave Toolbox Interferometry
1

After completion of all steps(up to 7) of PSInSAR in StaMPS, mean velocity and time series is plotted. But, while repeat this again, it throws out an error saying:

Error using load. Unable to find file or directory ‘./phuw1’.

Error in ps_plot (line 1370),

uw = load(phuwname).

What may be the cause of this error and what is the solution ? Is there any problem in the parameter settings in ‘setparm’ or ‘getparm’ ?

[Note:I did whole processing with single patch(PATCH1), file or directory named ‘./phuw2’ is created in PATCH1.]