Error: There is already a Construct with name 'Regsep' in AppRegistry [AppRegistry]

Hello folks, basically I am working on a project and facing some issue :

while executing the code of bulkupload.ts I am getting this error 

throw new Error(There is already a Construct with name '${childName}' in ${typeName}${name.length > 0 ? ' [' + name + ']' : ''});

       ^

Error: There is already a Construct with name 'Regsep' in AppRegistry [AppRegistry]

here is the whole error :: npm WARN deprecated querystring@0.2.0: The querystring API is considered Legacy. new code should use the URLSearchParams API instead. /home/famith/git/source/infrastructure/node_modules/constructs/src/construct.ts:447 throw new Error(There is already a Construct with name '${childName}' in ${typeName}${name.length > 0 ? ' [' + name + ']' : ''}); ^ Error: There is already a Construct with name 'Regsep' in AppRegistry [AppRegistry] at Node.addChild (/home/famith/git/source/infrastructure/node_modules/constructs/src/construct.ts:447:13) at new Node (/home/famith/git/source/infrastructure/node_modules/constructs/src/construct.ts:71:17) at new Construct (/home/famith/git/source/infrastructure/node_modules/constructs/src/construct.ts:499:17) at new Resource (/home/famith/git/source/infrastructure/node_modules/aws-cdk-lib/core/lib/resource.js:1:1309) at new ApplicationBase (/home/famith/git/source/infrastructure/node_modules/@aws-cdk/aws-servicecatalogappregistry-alpha/lib/application.js:19:9) at new Application (/home/famith/git/source/infrastructure/node_modules/@aws-cdk/aws-servicecatalogappregistry-alpha/lib/application.ts:316:5) at AppRegistry.createAppForAppRegistry (/home/famith/git/source/infrastructure/lib/utils/app-registry-aspects.ts:122:28) at AppRegistry.visit (/home/famith/git/source/infrastructure/lib/utils/app-registry-aspects.ts:98:22) at recurse (/home/famith/git/source/infrastructure/node_modules/aws-cdk-lib/core/lib/private/synthesis.js:2:2282) at recurse (/home/famith/git/source/infrastructure/node_modules/aws-cdk-lib/core/lib/private/synthesis.js:2:2646)

here is below code for bulk upload 

import * as cdk from 'aws-cdk-lib';

import * as s3 from 'aws-cdk-lib/aws-s3';

import * as iam from 'aws-cdk-lib/aws-iam';

import * as lambda from 'aws-cdk-lib/aws-lambda';

import { LAMBDA_TIMEOUT_MINS } from '../utils/constants';

import { Construct } from 'constructs';

import { NagSuppressions } from 'cdk-nag';

export class BulkUploadLambda extends cdk.Stack {

constructor(scope: Construct, id: string, props?: cdk.StackProps) {

   super(scope, id, props);

   // Define the S3 bucket for document uploads

   const uploadBucket = new s3.Bucket(this, 'DocumentRepo', {

       // Define bucket properties here

   });

   // Create an IAM role for the Bulk Upload Lambda function

   const bulkUploadLambdaRole = new iam.Role(this, 'BulkUploadLambdaRole', {

       assumedBy: new iam.ServicePrincipal('lambda.amazonaws.com'),

       inlinePolicies: {

           'CustomLambdaPolicy': new iam.PolicyDocument({

               statements: [

                   new iam.PolicyStatement({

                       actions: ['s3:GetObject', 's3:PutObject'],

                       resources: [uploadBucket.bucketArn + '/*'],

                   }),

                   // Add any other necessary permissions here

               ],

           }),

       },

   });

   // Suppress CDK Nag rules for the Bulk Upload Lambda Role

   NagSuppressions.addResourceSuppressions(bulkUploadLambdaRole, [

       {

           id: 'AwsSolutions-IAM5',

           reason: 'Provide a reason for allowing wildcard permissions',

           appliesTo: [

               `Resource::<BulkUploadLambdaDocumentRepo.Arn>/*`,

           ],

       },

   ]);

   // Define the Bulk Upload Lambda function

   const bulkUploadLambda = new lambda.Function(this, 'BulkUploadLambda', {

       runtime: lambda.Runtime.PYTHON_3_11,

       handler: 'lambda_function.lambda_handler',

       code: lambda.Code.fromAsset('../lambda/bulk-upload'),

       timeout: cdk.Duration.minutes(LAMBDA_TIMEOUT_MINS), // Define your timeout value

       role: bulkUploadLambdaRole,

   });

}

}

finally i am calling this bulk.ts in dusstack.ts