Can't fetch ListUsers with CognitoIdentityProviderClient (aws-sdk) | AWS Amplify | Page 1

Hi everybody, I have a problem fetching users list from Cognito User Pool.

I'm working with next.js with /app router (v14.0.4), aws-amplify (v6.0.10) and @aws-sdk/client-cognito-identity-provider (3.496.0)

I'm trying to create an user page (profile page) and a page of users and my components look like this:

app/(auth)/(users)/[id]/actions.ts


import {
  CognitoIdentityProviderClient,
  ListUsersCommand,
} from "@aws-sdk/client-cognito-identity-provider";

export const listUsers = async () => {
  const cognitoIdentityProviderClient = new CognitoIdentityProviderClient({});
  const userPoolId = process.env.NEXT_PUBLIC_USERPOOL_ID!;

  const params = {
    UserPoolId: userPoolId,
  };

  try {
    const result = await cognitoIdentityProviderClient.send(
      new ListUsersCommand(params)
    );

    return result.Users;
  } catch (err: any) {
    console.error(err, err.stack);
    if (err.digest) {
      console.error("Error Digest:", err.digest);
    }
    throw err;
  }
};

app/(auth)/(users)/[id]/page.tsx


...
const UserPage = () => {
 ...

  useEffect(() => {
    const fetchUsers = async () => {
      try {
        // @ts-ignore
        const usersFromUserPool: UserType[] | undefined = await listUsers();
        setUsers(usersFromUserPool || []);
      } catch (error: any) {
        console.error("Error fetching users:", error);
      }
    };
    fetchUsers();
  }, []);

 ...
  return (
   ..
  );
};

export default UserPage;```

**Everything works fine in local, but not in production**, where I get this error:
```An error occurred in the Server Components render. The specific message is omitted in production builds to avoid leaking sensitive details. A digest property is included on this error instance which may provide additional details about the nature of the error.```
I also included the env var in my amplify console and in my build settings.

Any idea what I'm doing wrong?
Thanks in advance

my env vars (see image)

For more context this is what my amplify.yml under App settings: Build settings look like:

backend:
  phases:
    build:
      commands:
        - '# Execute Amplify CLI with the helper script'
        - amplifyPush --simple
frontend:
  phases:
    preBuild:
      commands:
        - npm ci
    build:
      commands:
        - env | grep -e BUCKET_NAME -e BUCKET_REGION -e ACCESS_KEY -e SECRET_ACCESS_KEY -e NEXT_PUBLIC_USERPOOL_ID >> .env.production
        - npm run build
  artifacts:
    baseDirectory: .next
    files:
      - '**/*'
  cache:
    paths:
      - node_modules/**/*

#Can't fetch ListUsers with CognitoIdentityProviderClient (aws-sdk)