The solution proposed by Lacie support was to use SMB temporarily while the new capsule was prepared and published (2.1.X), well the capsule became available on Nov. 17 from Lacie website.
My plain advise is not to perform this update as it contains an implementation of AFP that is unstable, inconsistent and slow, in addition the firmware update process moved all my files/folders into a Recovery folder available only to admin "MyShare" (no previous warning from Tech Sup). I spent the last two days trying to get my information back into place, as I use User Shares and all my files were in a different location than MyShare.
While copying 60GB of files I had several different errors, but not once I managed to copy all my files. The process was giving my false information, as it would finish without reporting any error but many of the folders copied were completely empty, checking the source would show the same status (0 files) and only after disconnecting and connecting again, the content of the folder would be shown.
You would do much better waiting for a better release of the firmware, using the work around explained here or simply buying a new HD and using SMB to transfer all your files. Additionally, if you don't fancy TimeMachine, SMB seems to be stable enough to be used instead of AFP.