Missing graph template

[NTTNetworkMon]

I get the following:
Warning: Invalid argument supplied for foreach() in /var/www/html/graphs_new.php on line 798
Warning: Invalid argument supplied for foreach() in /var/www/html/graphs_new.php on line 798
Warning: Invalid argument supplied for foreach() in /var/www/html/graphs_new.php on line 798

When trying to add a the SNMP - Interface Statistics graph.
Running an older linux version of CACTI. Version 0.8.7b

Any ideas on why this is happening and what the solution might be?

[netniV]

There will be a variable just after the brackets on that line in graphs_new.php "foreach(<collection variable> as <item variable>)", trace backwards the collection variable and see where it is set as it's likely something that failed at that point. I don't have a 0.8.7 installation to double check against at the moment so can't really double check it for you.