HMIB's CPU script bug. No Data

[super-hornet]

Hi all

Recently I installed HMIB plugin of v1.4. According to the READMe file or from the http://docs.cacti.net/plugin:hmib?s[]=hmib, that I need to replaced my cacti (Version 0.8.7i)'s ss_host_cpu.php with the one that comes with hmib.
So, I use the "hmib/templates/post087e/scripts/ss_host_cpu.php" and replaced my existing cacti's one.

When I do that, it turns out my CPU utilization all shows no data. I have no choice but to revert back my original cacti's ss_host_cpu.php and the CPU utilization graphs all back to normal.

With that, I not sure whether is there any bug in the "hmib/templates/post087e/scripts/ss_host_cpu.php" or somehow I follow the instruction wrongly.