Error in finding phuw.mat

[blueyeti1994]

After processing data using StaMPS through several steps stamps(1,1) ....stamps(6,6). when i enter command for aps_linear i get following response

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aps_linear
PARM: stamps_processed='n'
PARM: hgt_matfile='/home/sagar/sda/ktmDesc/INSAR_20230423/hgt.mat'
PARM: ll_matfile='/home/sagar/sda/ktmDesc/INSAR_20230423/ll.mat'
PARM: phuw_matfile='/home/sagar/sda/ktmDesc/INSAR_20230423/phuw.mat'
PARM: non_defo_flag='n'
Error using load
Unable to find file or directory '/home/sagar/sda/ktmDesc/INSAR_20230423/phuw.mat'.

Error in aps_linear (line 92)
phuw = load(phuw_matfile);
`

`

why PARM: stamps_processed=‘n’ instead of ‘y’. also instead of phuw.mat, II.mat and hgt.mat, it should have been phuw2.mat, II2.mat and hgt2.mat. How to solve this?