Power Shell Script failed to run - GetMGAlertsCount.ps1

Question

Our SCOM 2012 R2 is getting the following script error every 45 minutes...
The PowerShell script failed with below exception
System.Management.Automation.PropertyNotFoundException: The property 'Name' cannot be found on this object. Verify that the property exists.At line:57 char:3
+ $firstLvlClass = Get-SCOMClass -Id $firstLvlMember.Name
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
at CallSite.Target(Closure , CallSite , Object )
at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0)
at CallSite.Target(Closure , CallSite , Object )
at System.Management.Automation.Interpreter.DynamicInstruction`2.Run(InterpretedFrame frame)
at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
Script Name: GetMGAlertsCount.ps1
One or more workflows were affected by this.
Workflow name: ManagementGroupCollectionAlertsCountRule
Instance name: All Management Servers Resource Pool
Instance ID: {4932D8F0-C8E2-2F4B-288E-3ED98A340B9F}
Management group: NCA2
On the management server seeing corresponding 22406 errors
System
Provider
[ Name]
Health Service Modules
EventID
22406
[ Qualifiers]
49152
Level
2
Task
0
Keywords
0x80000000000000
TimeCreated
[ SystemTime]
2015-04-21T18:44:03.000000000Z
EventRecordID
1303964
Channel
Operations Manager
Computer
PKSWSM001.ad.nca.com
Security
EventData
NCA2
ManagementGroupCollectionAlertsCountRule
All Management Servers Resource Pool
{4932D8F0-C8E2-2F4B-288E-3ED98A340B9F}
GetMGAlertsCount.ps1
300
System.Management.Automation.PropertyNotFoundException: The property 'Name' cannot be found on this object. Verify that the property exists.At line:57 char:3 + $firstLvlClass = Get-SCOMClass -Id $firstLvlMember.Name
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ at CallSite.Target(Closure , CallSite , Object ) at System.Dynamic.UpdateDelegates.UpdateAndExecute1[T0,TRet](CallSite site, T0 arg0) at CallSite.Target(Closure , CallSite , Object ) at System.Management.Automation.Interpreter.DynamicInstruction`2.Run(InterpretedFrame
frame) at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame) at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
System.Management.Automation.PropertyNotFoundException
I'm at a bit of a loss to troubleshoot this error.  I cannot find the "GetMGAlertsCount.ps1"  script to execute manually and don't have much else I can find to troubleshoot.
Thanks for your help!

Answer 1

1) Please check Event Log on the management server and see if there are any related errors.
Nothing
interesting found
2) On the management server, please ensure the following key exists:
HKLM:\SOFTWARE\Microsoft\System Center Operations Manager\12\Setup\Powershell\V2
Two entries found underneath this key;
(Default) (value not set)
InstallDirectory C:\Program Files\Microsoft System Center 2012 R2\Operations Manager\Powershell\
3) Action Account has access to the resources used by the PowerShell script.
is LocalSystem
4) Make sure that the computer is not over utilized.
No indication of overutilization
Thank you for the suggestions!  Do you know of anything else to check?