Hi,
In fact, same problem not happen again yet. Here just an application informational event for your reference. Thanks !
The description for Event ID ( 0 ) in Source ( NetBackup TLD Control Daemon ) cannot be found. The local computer may not have the necessary registry information or message DLL files to display messages from a remote computer. You may be able to use the /AUXSOURCE= flag to retrieve this description; see Help and Support for details. The following information is part of the event: starting tldcd.