Application installation is unavailable because another operation is running: Plugin Activation for 'plugin name'DescriptionAdmin users on domain separated instances with domain delegated administration enabled can see the following when trying to install a plugin although no plugin is currently being installed: Release or EnvironmentSeen in New YorkCauseWhen 'Domain delegated administration' is enabled the user must comply with the following constraints in order to activate plugins: Have the 'Admin' roleNot be a read-only userMust be in the 'global' domain ResolutionIf the 'Domain delegated administration' property is set to true, make sure that the administrative user is in the 'global' domain.Additional InformationPRB1363926 is currently being reviewed to correct the message