Cannot load model issue wabi-australia-southeast-redirect.analysis.windows.net

Hi, 

Ever since this morning I have been getting a fatal Power BI error with some of my reports which are linked to a data model. The error says:

Cannot load model

We couldn't connect to your model in the Power BI Service. The dataset may have been deleted, renamed, moved, or it is possible that you don't have permission to access it. 
wabi-australia-southeast-redirect.analysis.windows.net

Once I get this message I have no choice but to kill the program and re-open it. I've not changed the name or moved the data model. And prior to the error I can see that the report has refreshed the data so it is connecting to the model. I can then reopen the report and see the data again, but after a little while I will get the same fatal error. 

Can someone please help, I have spent weeks building these reports and have no idea why this is happening and what would have changed to trigger it. 

Rebecca

The details of the error are copied and pasted below. I've had to cut some of it off due to the limit on the size of this post. 

-----------------------

Feedback Type:
Frown (Error)

Timestamp:
2020-05-13T12:17:08.7200183Z

Local Time:
2020-05-13T22:17:08.7200183+10:00

Session ID:
b05ac42d-29f2-4e63-8770-f242ea30ff66

Release:
December 2019

Product Version:
2.76.5678.782 (19.12) (x64)

Stack Trace:

Server stack trace:
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.ExecuteSchemaCommand[T](ExploreHostDataSourceInfo dataSourceInfo, IDbConnectionPool connectionPool, IConnectionFactory connectionFactory, IConnectionUserImpersonator connectionUserImpersonator, QueryExecutionOptionsBase queryExecutionOptions, ITelemetryService telemetryService, Func`2 action, String failTelemetryMessage, ServiceErrorStatusCode statusCode, ExploreBaseEvent exploreEvent)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.<>c__DisplayClass9_0.<GetModelMetadata>b__1(ExploreBaseEvent timedEvent)
at Microsoft.PowerBI.ReportingServicesHost.ExploreTelemetryService.<>c__DisplayClass4_0`1.<RunInActivity>b__0(ExploreBaseEvent activity)
at Microsoft.PowerBI.ReportingServicesHost.ExploreTelemetryService.RunInActivity(String activityName, Action`1 action)
at Microsoft.PowerBI.ReportingServicesHost.ExploreTelemetryService.RunInActivity[T](String activityName, Func`2 action)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.GetModelMetadata(ExploreHostDataSourceInfo dataSourceInfo, IDbConnectionPool connectionPool, IConnectionFactory connectionFactory, String modelMetadataVersion, QueryExecutionOptionsBase queryExecutionOptions, IConnectionUserImpersonator connectionUserImpersonator, ITelemetryService telemetryService)
at Microsoft.PowerBI.ReportingServicesHost.ReportingSession.GetModel(String dataSourceName, String modelMetadataVersion)
at Microsoft.PowerBI.ReportingServicesHost.ReportingSession.GetModelAsStream(String dataSourceName, String modelMetadataVersion)
at Microsoft.PowerBI.ReportingServicesHost.ReportingSession.GetConceptualSchema(String modelMetadataVersion, ParseConceptualSchema parse, ModelDaxCapabilities& capabilities)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.GetConceptualSchemaImpl(IPowerViewHandler powerViewHandler, String databaseID, String maxModelMetadataVersion, ModelDaxCapabilities& capabilities)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.HandleModelRetrievalExceptions[T](Func`1 wrappedCall, String databaseID, ServiceErrorStatusCode statusCode, FeatureSwitches featureSwitches)
at Microsoft.PowerBI.ExploreHost.Utils.ExploreHostUtils.GetConceptualSchemaAndHandleExceptions(IPowerViewHandler powerViewHandler, String databaseID, String maxModelMetadataVersion, ModelDaxCapabilities& daxCapabilities)
at Microsoft.PowerBI.ExploreHost.ExploreClient.GetConceptualSchema(String databaseID, String maxModelMetadataVersion)
at Microsoft.PowerBI.Client.Windows.AnalysisServices.AnalysisServicesDatabaseLive.GetConceptualSchema()
at Microsoft.PowerBI.Client.Windows.AnalysisServices.AnalysisServicesDatabaseLive.get_DataModel()
at Microsoft.PowerBI.Client.Windows.DataModelHostService.<GetDataModel>b__5_0()
at Microsoft.Mashup.Host.Document.SynchronizationContextExtensions.<>c__DisplayClass1_0`1.<SendAndMarshalExceptions>b__0()
at Microsoft.Mashup.Host.Document.SynchronizationContextExtensions.<>c__DisplayClass0_1.<SendAndMarshalExceptions>b__0(Object null)

Exception rethrown at [0]:
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.Mashup.Host.Document.ExceptionExtensions.CaptureAndRethrow(Exception e)
at Microsoft.Mashup.Host.Document.SynchronizationContextExtensions.SendAndMarshalExceptions(SynchronizationContext context, Action callback)
at Microsoft.Mashup.Host.Document.SynchronizationContextExtensions.SendAndMarshalExceptions[T](SynchronizationContext context, Func`1 callback)
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions[T](IExceptionHandler exceptionHandler, Func`1 func)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.PowerBI.Client.Windows.AnalysisServices.AnalysisServicesDatabaseLive.GetConceptualSchema()
at Microsoft.PowerBI.Client.Windows.AnalysisServices.AnalysisServicesDatabaseLive.get_DataModel()
at Microsoft.PowerBI.Client.Windows.Services.WarningDetectionService.DetectReportLoadWarning()
at Microsoft.PowerBI.Client.Windows.Services.WarningDetectionService.<ScheduleAsyncDetection>b__14_0()
at Microsoft.Mashup.Host.Document.ExceptionHandlerExtensions.HandleExceptions(IExceptionHandler exceptionHandler, Action action)

InnerException.Stack Trace:
at Microsoft.PowerBI.DataExtension.Msolap.Connection.OpenImpl()
at Microsoft.PowerBI.DataExtension.Contracts.Utilities.RunSynchronously(Action action)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.PowerBI.ReportingServicesHost.PoolableConnectionWrapper.<OpenAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Microsoft.PowerBI.ReportingServicesHost.Utils.TaskExtensions.WaitAndUnwrapException(Task task)
at Microsoft.PowerBI.ReportingServicesHost.LocalReportProcessingHost.ExecuteSchemaCommand[T](ExploreHostDataSourceInfo dataSourceInfo, IDbConnectionPool connectionPool, IConnectionFactory connectionFactory, IConnectionUserImpersonator connectionUserImpersonator, QueryExecutionOptionsBase queryExecutionOptions, ITelemetryService telemetryService, Func`2 action, String failTelemetryMessage, ServiceErrorStatusCode statusCode, ExploreBaseEvent exploreEvent)

OS Version:
Microsoft Windows NT 10.0.16299.0 (x64 en-US)

CLR Version:
4.7 or later [Release Number = 461308]

Peak Virtual Memory:
34.2 GB

Private Memory:
452 MB

Peak Working Set:
538 MB

IE Version:
11.1685.16299.0