Great! Thanks for sharing more details and let’s keep this tutorial’s questions all together since they seem to be related.
Would you like to generate a share link to the history that contains the error? This will allow us to see all of the data and tool details in context. Then we can tease out whether this is something you should adjust in the usage or inputs versus a technical issue on the server. We can reach out to the https://workflow4metabolomics.usegalaxy.fr/ administrators as well with that context.
How to generate the link. → How to get faster help with your question. You can paste that back here in your next reply. Thanks! 