Resolution:
If the error is only seen when trying to view the service instance in the TIBCO Administrator GUI, you can first try undeploying, deleting and redeploying the application. You can find the application by clicking on each application service instance under the “Application Management” folder in the Admin GUI. If you are not able to undeploy the application then the best course of action will be to restore the files from backup. In case the backup files do not exist then contact TIBCO Support.