Hey Didier_raphael,
ERROR: AutomationTool terminated with exception: System.IO.InvalidDataException: Se encontraron datos no válidos al descodificar.
So the issue here is the same as reported in the following thread: Packaging Error: Automation Tool? - Platform & Builds - Unreal Engine Forums
It is saying System.IO.InvalidDataException: Found invalid data while decoding.
What you’ll need to do is, if you’re using a custom icon, make sure it is a native .ico file and not something converted from another file type.
Let me know if you have additional errors after fixing this.
Have a great day