welcome

Every menute I recive this letter from LFD :

lfd: Excessive resource usage: X (27264)

Time: Tue Apr 15 08:31:27 2008
Account: X
Resource: Virtual Memory Size
Exceeded: 157 > 100 (MB)
Executable: /usr/bin/php
Command Line: /usr/bin/php
PID: 27264
Killed: No
Why I Recive this ?
are there any probs ?
must I care about it ?
How I can fix it ?

Thanks LFD spamming me !! help 100 email / min