Oracle Error Message
ORA-28395: could not write the new master key to the wallet
Reason for the Error
An attempt was made to write the new master key to the wallet. The wallet or the parent directory may not have the proper file permissions to write the master key in the wallet.
Solution
Check the password-based wallet, auto login wallet, the parent directory permissions and disk space availability on the file system. Make sure that the Oracle processes have read/write permissions on the password-based and auto login wallets. Retry the command.