Hi Fabio,
Please log in directly to the console. Try to execute the command directly by typing it in terminal. Pls check if the commands are valid for XIP. Secondly check for access/authorization of the script. Ensure your script has read write execute permission for owner, group and other level user.
There is no reason the script will not execute. Ask for remote access to operating system at command line level form the BASIS team or the admin team.
Regards
Anupam