reason for account suspended

[nishan]

Hi

Today I found my website suspended two days ago for apparent

" You have been suspended for high system resource usage. Accounts are suspended for usage when they are detected to have consistently high cpu usage, memory usage, or process amounts. This is an automa .... "

I used the automatic facility and I got unsuspended almost immediately.

I have a static site with basic php scripts. No applications or Databases are used. And I didn't do any work on the site for last few weeks. C Pannel shows my bandwidth usage for the month 0%. My site is www.amazinglanka.com

Can someone help me as to why I was suspended ? I just want to avoid a similar instances in future

thanks in advance