Event Script problem

[Frank68]

Hi I have make some event script "parametric" , in one sysstem with more event alarm

see below

-- GET CURRENT DATA AS TABLE
now = os.date('*t')
TS=' del '..now.day..'/'..now.month..'/'..now.year..' alle '..now.hour..':'..now.min..':'..now.sec..'.'
-- GET MAIL ADDRESS
Dest  = grp.getvalue('32/1/41')
--GET ADDRESS EVENT FIRE
id=event.dst
--GET VALUE
value =grp.find(event.dst).value
-- GET NAME OF OBJECT
name = grp.alias(id)
-------------------------------------------------------------------------------------
if (value == true) then
  subject = 'Allarme Scatto'
  message = 'Inizio ' .. 'ID ' .. id .. ' - ' .. name  ..' '.. TS
  mail(Dest, subject, message)
  alert(message)
  ALM = 1
elseif (value == false) then
  subject = 'Ripristino Allarme'
  message = 'Ripristino ' .. 'ID ' .. id .. ' - ' .. name  ..' ' .. TS
  mail(Dest, subject, message)
  ALM = 0
end
------------------------------------------------------------------------------------
--SET TOTAL NUMBER ALARM
ALM_OLD = grp.getvalue('32/1/40')

if (ALM==1) then
  Alm_N = ALM_OLD+1
elseif (ALM==0) then
  Alm_N = ALM_OLD-1
end 

grp.write('32/1/40', Alm_N)

My proble the script when have event not run , manualy run , where is the problem ?

Best regards