Hello I'm trying to make a JS application to make a Teams call with MS Graph but it returns this error Error getting users: Error: {"errorCode":"7503","message":"Application is not registered in our store.","instanceAnnotations":[]} Do you have a solution?

The code i have find :

const options = {
    authProvider,
};

const client = Client.init(options);

const call = {
  '@odata.type': '#microsoft.graph.call',
  callbackUri: 'https://bot.contoso.com/callback',
  targets: [
    {
      '@odata.type': '#microsoft.graph.invitationParticipantInfo',
      identity: {
        '@odata.type': '#microsoft.graph.identitySet',
        user: {
          '@odata.type': '#microsoft.graph.identity',
          displayName: 'John',
          id: '112f7296-5fa4-42ca-bae8-6a692b15d4b8'
        }
      }
    }
  ],
  requestedModalities: [
    'audio'
  ],
  mediaConfig: {
    '@odata.type': '#microsoft.graph.serviceHostedMediaConfig'
  }
};

await client.api('/communications/calls')
    .post(call);

source : https://docs.microsoft.com/en-us/graph/api/application-post-calls?view=graph-rest-1.0&tabs=javascript