Wasn’t well written by me. The error indicates that the bands containing the geographic information are copied twice. Once automatically by SNAP and again by the SEN-ET script. That’s why I thought you could change the script not to copy those bands.
But as you have tried to disable the per-pixel geo-coding option and it still does not work the origin of this problem is something else.
This I can’t answer. I don’t know SEN-ET. But from the manual it seems to be a generic operation. But I think, you want to use the output of the S2 pre-processing graph
The XMLInputFactory error is known and is not related to the problem you experience.
See here: