Misleading "Scheduling failed" error messages

[NiklausHofer]

I installed the Sepiola backup client today. On the initial run of the software, I configured the directories to be backed up. I did, however, not configure a backup schedule (I left "No schedule, only manual backups" selected). When I was done and hit "Save", I got this error message:

Later I condigured a backup schedule. On saving the configuration, a new error message was displayed:

which, as you can see, is very similar to the first one. Despite this second error message, scheduling of the backup actually worked:

crontab -l

2016-11-25 17:17:14  INFO listing sst-nho's fcrontab
0 12 * * 1,2,3,4,5 LANG=en_US.utf8 "/home/sst-nho/sepiola-2.3.5-15-g1a2b904-Linux-x86_64/bin/sepiola" -schedule

My system:

uname -a

Linux octarine 4.8.6 #8 SMP Mon Nov 14 23:39:02 CET 2016 x86_64 Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz GenuineIntel GNU/Linux

lsb_release -a

LSB Version:    n/a
Distributor ID: Gentoo
Description:    Gentoo Base System release 2.2
Release:    2.2
Codename:   n/a

eselect profile list

[...]
  [16]  hardened/linux/amd64/no-multilib *
[...]

Software version: sepiola-2.3.5-15-g1a2b904-Linux-x86_64