Error on KDE Disk Free

[tiago4171]

Hi all,
I Trying to solve a error who I wasnt found nothing on google.
When I try open Dolphin and click to see how much space I have on disk, the dolhpin open KDIsk Free and when I close I get this error:

"
KdeInit could not launch 'usr/bin/kdf'
"

The aplication works as expected, but only when I try to close when I oppened it by dolphin I get this error.
Opening Dolhpin on terminal and causing the error has no useful output, so I have no I idea in how to start debugging this.

Anyway, is this have a solution?

OBS: Sorry for any concordance errors, english is my second language and it is pretty new to me.