REST API Error getting a Secret Key in 12c PS4

Created a Default Domain and try to call the REST API to get the secret key for the user but getting the following error

{

    "message": "Unable to load Domain/Client profile",

    "OICErrorCode": "OAM-92005"

}

The Default Domain is already created as follows

Sucessfully created entity - OAuthIdentityDomain, detail - OAuth Identity Domain :: Name - DefaultDomain, Id - 87428274e88e40b590a41d8e45b9d3ae, Description -  TestDomain, TrustStore Identifiers - [DefaultDomain], Identity Provider - OAMIDStore, TokenSettings - [{"tokenType":"SSO_LINK_TOKEN","tokenExpiry":3600,"lifeCycleEnabled":false,"refreshTokenEnabled":false,"refreshTokenExpiry":86400,"refreshTokenLifeCycleEnabled":false}, {"tokenType":"ACCESS_TOKEN","tokenExpiry":1800,"lifeCycleEnabled":true,"refreshTokenEnabled":true,"refreshTokenExpiry":5400,"refreshTokenLifeCycleEnabled":true}, {"tokenType":"AUTHZ_CODE","tokenExpiry":240,"lifeCycleEnabled":true,"refreshTokenEnabled":true,"refreshTokenExpiry":10800,"refreshTokenLifeCycleEnabled":true}], ConsentPageURL - /oam/pages/consent.jsp, ErrorPageURL - /oam/pages/servererror.jsp, CustomAttrs - {"keyAttributeName":"description"}