My zabbix stopped monitoring item SNMP

[imonteirov]

Hi all. Calimero thank you for helps. Thank you.
Friends users of zabbix
My SNMP items stopped monitoring. I don't know the reason.
In shell, the snmp commands running perfectly. But in zabbix don't running as before.
My graphs are [ no data ] now.
My configurations of zabbix items are corrects.

Help
running process: ./zabbix_server ; service snmpd start .

[imonteirov]

I found the error.
I had 40 itens ifOutOctets.X being monitored.
I disactivated 30 and came back to monitoring. What's happend? Refresh's time??