Trying to perform TOPSAR

hello everyone

i am trying to perform TOPSAR -Deburst but i am getting this error

“the specific region if not null must intersect with the images bounds”

i followed all steps as the guide recommended but i am stuck at this part. i also made a subset before this step so i can perform interferogram because i am unable to do it on the complete coregistered file as that is giving me java heap space error.

the files i have used are
S1A_IW_SLC__1SDV_20160914T051117_20160914T051144_013044_014AB8_FB0F.SAFE
S1A_IW_SLC__1SDV_20170124T051114_20170124T051141_014969_0186FD_647F.SAFE

i searched this error in the forum but i was not able to get any answers