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

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