wrong alert: same mail every day

[Gianluca Rossi]

Hi,
I am now receiving some alert happened last sunday, and i dont know why.
Monday happened the same thing, i received this alert:

red Sun Mar  5 11:53:26 2006 rpc NOT ok, Service unavailable


how can i stop hobbit sending the same email every day?
if i made a search on the file tmp/alert.chk i see a line indicating 
color "red" for service rpc and date "Sun Mar  5 11:53:26 2006" , is 
this correct? can i try to delete this line/remove the file?

hobbit is version 4.1.1 on linux debian

thanks
--
Gianluca