Pull and Push Docker Image task to ACR fails in Azure Devops Pipeline unauthorized Invalid clientid or client secret

Question

I tried pulling and pushing images or files from the local system and it works perfectly fine but when I tried with the Azure DevOps pipeline it fails. Docker login was successful but it fails when I want to pull the image from the acr with the following result:

Error response from daemon: Head "*/a2/abcd/manifest/latest": unauthorized: Invalid clientid or client secret.

My Yaml looks like this:

trigger: none

schedules:

- cron: "0 0 0 * *"

  displayName: **** *

  branches:

    include:

    - abcd

  always: true

pool:

  vmImage: 'ubuntu-latest'

variables:

- name: acrname

  value: *****.azurecr.io

stages:

- stage: abcd

  displayName: "pull images from acr"

  jobs:

  - job: abcdef

    displayName: "abcdef"

    pool:

      vmImage: ubuntu-latest

    steps:

      - task: Docker@2

        displayName: Login to ACR

        inputs:

          command: login

          containerRegistry: '*****.azurecr.io'

          

      - bash: |

            docker pull $(acrname)/abc-def:latest

            docker pull $(acrname)/igh-jkl:latest

        name: pull

        displayName: 'pull acr images'

Can someone find me a solution for this?