Error dellemc_nagios_discovery_service_utility.py on PowerVault ME4012

i used dellemc_nagios_discovery_service_utility.py to added my ME4012 storage, and dellemc_nagios_discovery_service_utility.py is working normally with MD series storage. How can i fix this issue or get more information on this?

i tried SNMP or HTTP.

python dellemc_nagios_discovery_service_utility.py --host=X.x.x.x --http.user=monitor --http.port=443 --http.timeout=30 --http.retries=3 --enableLog

python dellemc_nagios_discovery_service_utility.py --host=x.x.x.x --enableLog --snmp.version=1 --snmp.community=public --snmp.timeout 30

Result:

Dell EMC device discovery is in progress...

Total no of Hosts / IPs provided :1
Total no of Hosts / IPs processed successfully :0
Total no of Hosts / IPs already discovered:0
Total no of Hosts / IPs processing unsuccessful:1

Dell EMC device discovery completed.

Log:

2021-02-18 02:01:59,333 | INFO | WSMAN parameters passed : port 443 timeout 30 retiries 1
2021-02-18 02:01:59,333 | INFO | REDFISH parameters passed : port 443 timeout 30 retiries 1
2021-02-18 02:01:59,333 | INFO | REST parameters passed : port 443 timeout 30 retiries 1
2021-02-18 02:01:59,333 | INFO | Discovery requested for ip x.x.x.x using protocol WSMANREDFISHREST
2021-02-18 02:01:59,335 | INFO | Dell EMC device discovery is in progress...
2021-02-18 02:01:59,338 | INFO | Trying to find device type for host x.x.x.x