ubuntu 16.04,Activated service 'org.freedesktop.SystemToolsBackends' failed: The permission of the setuid helper is not correct

mouse choice system--->network, system point “the configuration could not be loaded”
Ubuntu System‘s wifi continuous disconnection,wireless cannot find wifi signal
show /var/log/syslog detail:
 Aug 18 14:33:34 root123-Lenovo-S41-35 kernel: [ 2877.170219] ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!
Aug 18 14:33:29 root123-Lenovo-S41-35 dhclient[4522]: DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 8 (xid=0x4c07d816)
Aug 18 14:33:37 root123-Lenovo-S41-35 dhclient[4522]: DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 18 (xid=0x4c07d816)
Aug 18 14:33:38 root123-Lenovo-S41-35 kernel: [ 2880.873572] ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!
Aug 18 14:33:38 root123-Lenovo-S41-35 kernel: [ 2880.873612] ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!
Aug 18 14:33:39 root123-Lenovo-S41-35 kernel: [ 2882.171514] ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!
Aug 18 14:33:39 root123-Lenovo-S41-35 dbus[841]: [system] Activating service name='org.freedesktop.SystemToolsBackends' (using servicehelper)
Aug 18 14:33:39 root123-Lenovo-S41-35 dbus[841]: [system] Activated service 'org.freedesktop.SystemToolsBackends' failed: The permission of the setuid helper is not correct
Aug 18 14:33:40 root123-Lenovo-S41-35 kernel: [ 2883.132621] ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!
Aug 18 14:33:42 root123-Lenovo-S41-35 kernel: [ 2885.060355] ath10k_pci 0000:03:00.0: no channel configured; ignoring frame(s)!