Copyleak Webhook url is not being called

Question

I'm integrating copyleaks API in my PHP project. Using this code for scanning the free text..

$webookUrl = 'https://example.com/prodparallel/copyleakCallback.php'; Here, I'm replacing the site name with example.com [I'm using my dev server URL]..

    $submission = new CopyleaksFileOcrSubmissionModel(
          "en",
          $base64data,
          "plagarism.txt",
          new SubmissionProperties(
            new SubmissionWebhooks("$webookUrl/{STATUS}"),
            false,
            null,
            true,
            6,
            1,
            true,
            false,
            new SubmissionAuthor('php-test'),
            new SubmissionFilter(true, true, true),
            new SubmissionScanning(true, new SubmissionScanningExclude('php-test-*'), null, new SubmissionScanningCopyleaksDB(true, true)),
            new SubmissionIndexing((array)[new SubmissionRepository('repoId')]),
            new SubmissionExclude(true, true, true, true, true),
            new SubmissionPDF(true, 'title', 'https://lti.copyleaks.com/images/copyleaks50x50.png', false),
            new SubmissionSensitiveData(false, false, false, false, false, false, false, false)
          )
        );

    $copyleaks->submitFile($product,$loginResult,$scanId,$submission);

After this, I check in https://api.copyleaks.com/dashboard/businesses/scans, The scanning process is done.. but webhook URL is not triggered.

[Completion webhook is still sending]

I'm using a PHP page as webhook URL, here is the code of https://example.com /prodparallel/copyleakCallback.php

$uri_path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);

$uri_segments = explode('/', $uri_path);

if(isset($uri_segments[2]) && $uri_segments[2] == 'completed'){ do this////

}else if(isset($uri_segments[2]) && $uri_segments[2] == 'error'){ do this//// }else{ do this//// }

Can anyone please help me to understand why my webhook URL is not being triggered after completion of the scanning process???