CheckMK Logwatch Plugin - Check configured on host but not displaying in management

root@sshagentvm:/usr/lib/check_mk_agent/plugins# export MK_CONFDIR=/etc/check_mk/
root@sshagentvm:/usr/lib/check_mk_agent/plugins# ./mk_logwatch.py
<<<logwatch>>>
[[[/root/logfiles.log]]]
root@sshagentvm:/usr/lib/check_mk_agent/plugins#

adding a new line to file :

root@sshagentvm:/usr/lib/check_mk_agent/plugins# echo "a new other error" >> /root/logfiles.log
root@sshagentvm:/usr/lib/check_mk_agent/plugins# ./mk_logwatch.py
<<<logwatch>>>
[[[/root/logfiles.log]]]
C a new other error
root@sshagentvm:/usr/lib/check_mk_agent/plugins#

reschudeld the service :