Not able to configure pipeline jobs using the JCasC plugin

[mkjkec2005]

Hello,

I am getting below error while trying to configure pipeline jobs using the plugin.

Failed ConfigurationAsCode.init
io.jenkins.plugins.casc.ConfiguratorException: Found incompatible configuration elements YamlSource: /var/jenkins_home/casc_configs/jobs.yaml

Below is the snippet i added to my Jenkins values.yaml file. Please note that the installation is using Helm.

JCasC:
defaultConfig: false
configScripts:
welcome-message: |
jenkins:
systemMessage: Welcome to our CI\CD server. This Jenkins is configured and managed 'as code'.
pipeline-job: |
jobs:
- script: >
folder('TEST')
- script: >
pipelineJob('TEST/Hello-world') {
description('Master job for CI pipeline')
parameters {
string(name: 'PULL_REQUEST_FROM_REPO_ID', defaultValue: '', description: 'Pull request parameters')
string(name: 'PULL_REQUEST_FROM_BRANCH', defaultValue: '', description: 'Pull request parameters')

            }
            properties {
                buildDiscarder(logRotator(artifactDaysToKeepStr: '', artifactNumToKeepStr: '', daysToKeepStr: '', numToKeepStr: '80'))
                disableConcurrentBuilds()
            }
          definition {
          cpsScm {
           scm {
            git {
              remote {
                url("https://mybitbucket.com/scm/sandbox/repo.git")
                credentials('my-cred')  
              }
              branches('*/master')  // Configure the branch you want to build
              scriptPath('Jenkinsfile')  // Path to your Jenkinsfile in the repository
              }
            }
           }
          }
          }
  jenkins-credentials: |
    credentials:
      system:
        domainCredentials:
        - credentials:
           - usernamePassword:

Could you please help to understand what is missing in above snippet?