Keycloak Authentication Debugging

Front end = React
Back End = Django

Issue: Im not able to login to my system via keycloak
error

"error":"unauthorized_client",
"error_description":"Invalid client or Invalid client credentials"

as per our keycloak admin the issue was the authentication via front end i have to change the to back end authentication..

Your work is to resolve the login issue via keycloak
and you should work with other developer resolve the problem with login..

you are going to work via zoho assist remotely. I can provide the code if we agree on the cost if you want to check the code