After a torrent finishes when disk almost full, it crashes

[buzonn]

I have:
the very last version: 2.7.3
Reserve of space activated.
Unfinished torrents under a temporal folder.
Everything in a ntfs disk.
!qb extension activated.

When my disk is almost full and one of my torrents is finished qbittorrents says there is an error because the disk is full and then the torrent is set to "0% completed" and "paused" but I see that the the files I downloadesd are in the temporal folder and in the folder they should be after the download.

Another thing. When I add a new torrent to download, qbittorrent creates a folder under the temporal one and sometimes other under the final destination (where it should be when finishes). And sometimes, qbittorrent puts unfinished files under both folder.