Grafana / Nagios /PNP4Nagois

Hi there

I’m new here and I started usign Grafana ( https://support.nagios.com/kb/article/nagios-core-using-grafana-with-pnp4nagios-803.html ) few days ago and here is my question:
I created a graph for monitoring VRF connections (24 point) and I add new points (in PNP4Nagios) but Grafana doesnt see them in PNP DB. When I choose “add query” it doesnt show me new created points.

Thoughts?

PS : Grafana doesnt see only hosts that DOWN… Added new one that UP and its OK