If you are running LiveCycle ES (8.x) you may notice the following exceptions in the server log when you restart the application server:
[05.05.11 10:40:43:809 CEST] 00000084 ExceptionCont W Scheduling subscription evaluation resulted in error. Reason: There is no active service configuration for service: IDPSchedulerService [05.05.11 10:40:43:809 CEST] 00000084 EventManagerI E Event Data storage failed. Reason: com.adobe.idp.event.policy.EventPolicyException: There is no active service configuration for service: IDPSchedulerService ..... Caused by: ALC-DSC-023-000: com.adobe.idp.dsc.registry.service.NoActiveServiceConfigurationException: There is no active service configuration for service: IDPSchedulerService
The same kind of exception can also refer to other services like EncryptionService, OutputService and so on, depending on the services deployed and used on your installation. Something has gone wrong during server startup and these services have not finished loading successfully. There can be many different causes for such behaviour, i.e. the app.server was somehow busy handling other requests or under load during LiveCycle start.
Restart the application server again, paying attention not to send any requests or calls to the server if possible.
If there are other applications deployed on the same application server as LiveCycle, then try to stop/remove those applications to identify which one may be interrupting the LiveCycle startup.