Since the update to last version of rtorrent-Pro (rtorrent_0.9.6-0124-190124_x86_64), I get an error as soon as a download complete:
Firmware version: 4.3.2.0760 Build 20181114
Model name: QNAP TS-873
Firmware version: 4.3.2.0760 Build 20181114
Model name: QNAP TS-873