[amp@localhost ~]$ ampinstmgr reactivate [instname] [my key]
[Info] AMP Instance Manager v2.3.2.8 built 28/03/2022 15:22
[Info] Release spec: Release - built by CUBECODERS/buildbot on CCL-DEV
[Info] Checking licence key...
[Error] IM was unable to execute the requested command.
[Error] FaultException
[Error] [0] (FaultException) : The server was unable to process the request due to an internal error.  For more information about the error, either turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the <serviceDebug> configuration behavior) on the server in order to send the exception information back to the client, or turn on tracing as per the Microsoft .NET Framework SDK documentation and inspect the server trace logs.
[Error]   at ServiceModel.FrameworkInternal.ClientRuntimeChannel.Request (ServiceModel.Description.OperationDescription od, Boolean isAsync, Object[]& parameters, ServiceModel.OperationContext context)
  at ServiceModel.ClientRealProxy.DoInvoke (Runtime.Remoting.Messaging.IMessage inputMessage)
  at ServiceModel.ClientRealProxy.Invoke (Runtime.Remoting.Messaging.IMessage inputMessage)
  at Runtime.Remoting.Proxies.RealProxy.PrivateInvoke (Runtime.Remoting.Proxies.RealProxy rp, Runtime.Remoting.Messaging.IMessage msg, Exception& exc, Object[]& out_args)
  at (wrapper managed-to-native) Object.__icall_wrapper_mono_remoting_wrapper(intptr,intptr)
  at (wrapper remoting-invoke) CCLClient45.LicencingClient.IService.GetLicenceSummary(Guid)
  at CCLClient45.LicencingClient.ServiceClient.GetLicenceSummary (Guid LicenceKey)
  at CCLClient45.Licencing+<>c__DisplayClass21_0.<GetLicenceInfo>b__0 ()
  at CCLClient45.Licencing.GetLicenceInfo (String LicenceKey)
  at InstanceManagerCLI.Core.ReactivateInstance (String InstanceName, String LicenceKey)
  at InstanceManagerCLI.Core.ExecuteCommand (Collections.Generic.List`1[T] Params, Collections.Generic.Dictionary`2[TKey,TValue] Args)