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NNO-00062:

cannot load domain data from configuration database
Cause: An error was encountered while trying to load the server's domain data from the configuration database. If more information is available, it will appear under this error. This error will cause the server to shut down.
Action: Make sure that the database is running, that its name and password as specified in the Oracle Network Manager are accurate, and that there is SQL*Net connectivity between the Oracle Names server and the database. To force the server to start up anyway, using its checkpoint data, start the server with the names.no_region_database parameter set to TRUE. If no checkpoint data is available, the server will shut down.