PSI using SNAP-STaMPS workflow in Windows Subsystem for Linux (WSL)

Hello everybody. I am new to Stamps, I am trying to PSI from wsl. Followed the instructions in the videos and the pdf.
However I have a problem, “mt_prep__snap: command not found”.
Maybe for you it is something simple, but I am stuck in this step.
Thank you very much to all or your comments, I have learned a lot from you.
imagen