Error in StaMPS-MTI Processing

I am getting the following error while processing stamps(1,1) step. The processing is for StaMPS-MTI (with small baseline flag). Please help me how to solve this error in matlab environement.

Have you completed the mt_prep_snap command?

Actually I have used ISCE processor. So all processing in linux is over now in matlab it is showing error message as mentioned above.
mt_prep_isce 0.4 3 2 50 200 has already completed.

you should enter the patch run stamps(1,1)