Hi @AccLxc and @bcazabonne,
I looked into the “Matlab” part of the “Integration in other languages” tutorial and we still have a reference to
DM=org.orekit.data.DataProvidersManager.getInstance()
Which I think is wrong since 10.1 and the introduction of DataContext.
It looks like this recent post in Python.
I think the line above should be replaced with:
DM=org.orekit.data.DataContext.getDefault().getDataProvidersManager()