The ORA-12705 error, "Invalid or unknown NLS parameter value specified," typically arises when the NLS_LANG environment variable on your deployment server is configured with an invalid language, territory, or character set. This mismatch between the client's NLS settings and the Oracle database's NLS settings leads to the error.
To resolve this issue, you need to ensure that the NLS_LANG environment variable on your deployment server is set to a valid and recognized value that is compatible with your Oracle database's character set.
For detailed instructions on how to identify and correct the NLS_LANG environment variable, please refer to the following article: