Since freeing up the space, have you tried logging out of the notebook aspect and logging back in? By logging out I specifically mean using any of the three bottom options highlighted below within the RSP notebook aspect FIle menu:
Hi @FabioRagosta – as of a few moments ago, we’re seeing that you’re still over the 35 GB quota. There appears to be an lsstsw directory which accounts for the vast majority of your current disk space usage and, by itself, exceeds the disk space quota. This directory also appears to be a couple years old in which case it seems possible that it could be eliminated so as to abide by the quota? Commands like quota or quota -s can be used to check your usage. Thanks very much.