WARNING: Problem with External get /usr/bin/naemonstats using mrtg.cfg

[mgadi]

Debian 8 Jessie - amd64

Thruk 2.08
Naemon Core 1.0.5-pkg

Hi, I am getting this error in root mailbox :

WARNING: Problem with External get '/usr/bin/naemonstats --mrtg --data=TOTCMDBUF,USEDCMDBUF,PROGRUNTIME,NAGIOSVERPID': Expected a Number for 'out' but got 'USEDCMDBUF'

2017-02-10 13:55:02: ERROR: Target[nagios-g][IN] ' $target->[6]{$mode} ' did not eval into defined data 2017-02-10 13:55:02: ERROR: Target[nagios-g][OUT] ' $target->[6]{$mode} ' did not eval into defined data