[smokeping-users] start slave smokeping error

[NIKO]

when I at last start the smokeping service，it apears some error ，I
dont know what does it mean，通河slave is not work 。the syslog is below

#/opt/smokeping/bin/smokeping
--master-url=http://ping.emagineconcept.com/smokeping/smokeping.cgi
--cache-dir=/opt/smokeping/cache/
--shared-secret=/opt/smokeping/etc/secrets.txt
Sent data to Server and got new config in response.
Use of uninitialized value in pattern match (m//) at
/opt/smokeping/lib/Smokeping/probes/FPing.pm line 67.
Use of uninitialized value in pattern match (m//) at
/opt/smokeping/lib/Smokeping/probes/FPing.pm line 68.
Use of uninitialized value in pattern match (m//) at
/opt/smokeping/lib/Smokeping/probes/FPing.pm line 70.
Use of uninitialized value in pattern match (m//) at
/opt/smokeping/lib/Smokeping/probes/FPing.pm line 73.
### assuming you are using an fping copy reporting in milliseconds
### parsing dig output...OK
Note: logging to syslog as local0/info.
Daemonizing /opt/smokeping/bin/smokeping ...