I don't arrive to monitor my sensor X420 with snmp

Steps to reproduce:

1. I have the X420 to monitor https://www.controlbyweb.com/x420/manuals.html
2. it is possible to configure it through a web (172.21.31.41) interface here are the settings for the snmp
3. I generated the device.mib file to convert it to xlm to put it in Zabbix
4. I created the host in Zabbix  "Bromley webrelay X420"
5. But nothing , i'm getting nothing

snmp service is already on the zabbix server

You can check also the template file : https://we.tl/t-TyKjnvQwJD

Result:
See screenshot...

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