Celyr, you are right!
after closed ktorrent, I still have a ktorrent process and I have to kill it:
Code:
bash-4.2$ ps auxxx |grep ktorrent
sardinha 5052 1.1 1.1 895496 44160 pts/1 Sl 11:55 0:05 ktorrent
sardinha 5085 0.0 0.0 7112 964 pts/1 R+ 12:03 0:00 grep ktorrent
bash-4.2$ killall ktorrent
Eric, Thank you for appoint the cause of the error in qBittorrent. I will recompile qbittorrent package in current.