PSI: Error on first step on Matlab

Thank you very much!
I followed this steps.
Now my problem is on Matlab, step 1, stamps (1,1). I got next error:

Error using load
Unable to read file ‘…/day.1.in’. No such file or directory.

Error in sb_load_initial (line 41)
day_yyyymmdd=load(dayname);

Error in stamps (line 135)
sb_load_initial;