If the server is starting, then the user ID under which the dsmserv process is running does not have sufficient authority to access the database. If the server is running and a server operation failed, then the user ID does not have sufficient authority to perform the operation.
If the server is starting, the dsmserv process ends. If the server is running, the server stops.
Ensure that the user ID under which the server is running is either the instance user ID, or is authorized to access the database.