snmp trap monitor ( v2c)

Hello ,
We have a problem which we try to config net-snmp 5.4.1 to self
monitor the linux and send snmp traps ( v2 ) i have config the
snmpd.conf as bellow but i got "failed to run mteTrigger query"

Any help will be good.

Thanks


snmpd.cnof
=================
rwuser impl
rocommunity public
rwcommunity private
syslocation "xxxxxx"
sysservices 0
syscontact "none"
authtrapenable 2
trapcommunity public
trap2sink 127.0.0.1
includeAllDisks 80%
disk / 90%
iquerySecName _user
agentSecName _user
monitor -o dskPath -o dskErrorMsg "dskTable" dskErrorFlag !=3D 0 -u
_user
rocommunity public