ORA-28418
password-based external keystore (OKV/KMS) is not open
Cause
Password-based external keystore (Oracle Key Vault (OKV) / Oracle Cloud Infrastructure (OCI) Key Management Service (KMS)) was not opened.
Action
Close the auto login keystore, if required, and open a password-based external keystore (OKV/KMS) or use the FORCE KEYSTORE clause.