It's not real error. It's just that now mounting is handled automagically, via ke-recv (in CSSU, at least), so H-E-N tries to mount it again, after it's mounted already.

If You ask me, it's asking for minor GUI update - one that consider augmented booston by joerg_rw, charging during hostmode, and current state of ke-recv - but, it would require convincing MAG to do it, as he wrote this GUI and it's project maintainer. Good luck with that.

/Estel