SBAS in StaMPS Tool - Processing Error

Hello everyone!
I am trying to use SBAS in StaMPS Export tool.
I would like to know why the process is failing, I added the corregistration stack and 4 interferogrmas as the instructions said, I don’t know what I did wrong.

Someone could help me to know how to solve it?
Thank you very much!

The operator requires 2 inputs:

  1. A coregistered SLC stack
  2. An interferogram product