Issue with docker Step 1/7 : FROM mlflow_base:latest

I am facing when running devOps pipeline which deploys the solution image on mlflow docker image in acr.
The issue is arising today after running same code without any changes.

Step 1/7 : FROM mlflow_base:latest
pull access denied for mlflow_base, repository does not exist or may require ‘docker login’: denied: requested access to the resource is denied

I am already performing docker login to acr with url, username, password.

Is there any docker service down which support mlflow_base