Steps to troubleshoot:
1)Navigate to APMhome\working\conf\application\scripts and execute the below mentioned commands one by one, and share the output screenshot with us.
To get cluster inventory & related info:
Usage: cscript wincluster.vbs <ClusterName> <UserName> <Password> <ClusterObjectCode>
The ClusterObjectcode is given below.
Cluster ResourceGroups - 5
Cluster Resources - 6
Cluster Network Interfaces - 7
To get performance data:
cscript wincluster_perf.vbs <ClusterName> <UserName> <Password> <PerformanceCounterCode>
The PerformanceCounterCode is given below.
All Performance Details - 0
Network Reconnection - 1
Multicast Request & Reply - 2
Resource Control Manager - 3
Resource Type Stats - 4
Network Messages - 5
For Example : cscript wincluster_perf.vbs servcluster1 domain\admin admin 0
Note : Make sure via wbemtest if the namespace "root\mscluster" is accessible & all permissions are provided.