cacti not showing Graphs for availability& utilization

[geofchirwa]

Hi

Iam running Cacti Version: 0.8.8h on Ubunthu 16.10 and i have this problem whereby graphs for utilization and Availability arent showing but only Ping/latency graphs are the ones showing.
is there something am missing.

I have attached 2 files so that you can have a feel of what am talking about.

I really need your help folks. thanks