If I go to Term store Management "Site Settings Term Store Management Tool" I get the following error.
The Managed Metadata Service or Connection is currently not available. The Application Pool or Managed Metadata Web Service may not have been started. Please Contact your Administrator.
In addition my event viewer has errors like the following. In the end I am trying to edit wiki categories on a wiki publishing site which relies on management meta data.
WebHost failed to process a request. Sender Information: System.ServiceModel.ServiceHostingEnvironment+HostingManager/33711845 Exception: System.ServiceModel.ServiceActivationException: The service '/SecurityTokenServiceApplication/securitytoken.svc' cannot be activated due to an exception during compilation. The exception message is: Exception has been thrown by the target of an invocation.. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: The farm is unavailable.