Plz help: download torrent files to external harddrive (no usb)

[GhostlyFriend]

Config:
PCH A-110 with internal CF-card as HDD (NMT Apps installed here)
Lacie Internet Space 1Tb connected through router (no USB)

Aim:
Download torrent files with Transmission 1.75 directly to the Lacie harddrive.

Steps taken:
Made a share on the PCH 110, named "Download"
Mapped the share to a folder on the Lacie
Deleted the folder "Download" on the PCH 110 itself
Config Transmission: files should be downloaded to /share/Download
Added a torrentfile to Transmission

Effect:
The torrentfile starts to download, but Transmission shows an error message:
No such file or directory (/share/Download/blabla...)

Can anyone help me out? Thanks!