Amazon web services – docker build success but fail to upload image the error is warning found use docker –debug to expand

i have build a docker image and i can’t upload the image
the error i got is

[33m1 warning found (use docker --debug to expand):
[0m - StageNameCasing: Stage name 'BUILD_IMAGE' should be lowercase (line 1)

def COLOR_MAP = [
    'SUCCESS': 'good', 
    'FAILURE': 'danger',
]
pipeline {
    agent any
    tools {
        maven 'MAVEN3'
        jdk 'OracleJDK17'
    }
    environment {
        registryCredential = 'ecr:us-west-2:awscreds'
        appRegistry = "819764105945.dkr.ecr.us-west-2.amazonaws.com/vprofileappimg"
        vprofileRegistry = "https://819764105945.dkr.ecr.us-west-2.amazonaws.com"
    }
    stages {
        stage('Fetch Code'){
            steps {
                git branch: 'docker', url: 'https://github.com/infratute/baseline-vprofile-project-complete.git' 
            }
        }
        stage('Build') {
            steps {
                sh 'mvn install -DskipTests'
            }
            post{
                success {
                    echo "Now Archiving"
                    archiveArtifacts artifacts: '**/*.war'
                }
            }
        }
        stage('UNIT TEST') {
            steps {
                sh 'mvn test' 
            }
        }
        stage('Checkstyle Analysis') {
            steps {
                sh 'mvn checkstyle:checkstyle' 
            }
        }
        stage('Sonar Analysis') {
            environment {
                scannerHome = tool 'sonar4.7'
            }
            steps {
                withSonarQubeEnv('sonar') {
                   sh '''${scannerHome}/bin/sonar-scanner -Dsonar.projectKey=vprofile 
                   -Dsonar.projectName=vprofile 
                   -Dsonar.projectVersion=1.0 
                   -Dsonar.sources=src/ 
                   -Dsonar.java.binaries=target/test-classes/com/visualpathit/account/controllerTest/ 
                   -Dsonar.junit.reportsPath=target/surefire-reports/ 
                   -Dsonar.jacoco.reportsPath=target/jacoco.exec 
                   -Dsonar.java.checkstyle.reportPaths=target/checkstyle-result.xml'''
              }
               timeout(time: 3, unit: 'MINUTES') {
                    waitForQualityGate abortPipeline: true
                }
            }
        }
            
        stage('Build App Image') {
            steps {
       
                script {
                dockerImage = docker.build( appRegistry + ":$BUILD_NUMBER", "./Docker-files/app/multistage/")
             }

     }
    
    }
        stage('Upload App Image') {
            steps{
                script {
                docker.withRegistry( vprofileRegistry, registryCredential ) {
                    dockerImage.push("$BUILD_NUMBER")
                    dockerImage.push('latest')
                }
                }
            }
        }

    }
  
}

these were the code used
help me in fixing this errorenter image description here

enter image description here

need to upload the docker image in Amazon ecr