Error: [GuzzleHttp\Exception\RequestException] Error creating resource: [message] fopen(http://xxx.blob.core.windows.net/xxx/xxx): failed to open stream: HTTP request failed!

We had never received this error message before. It was only appearing sometime early this year. Nothing has changed but it stopped working and producing this error.

Which service(blob, file, queue, table) does this issue concern?

Blob

Which version of the SDK was used?

1.5

What's the PHP/OS version?

PHP 7.2 / OS version: Microsoft Windows NT 10.0.14393.0 (Hosted via Azure Webapp)

What problem was encountered?

2021-02-13 23:46:01 Error: [GuzzleHttp\Exception\RequestException] Error creating resource: [message] fopen(http://xxx.blob.core.windows.net/xxx/xxx): failed to open stream: HTTP request failed! [file] D:\home\site\wwwroot\vendor\guzzlehttp\guzzle\src\Handler\StreamHandler.php [line] 329

Steps to reproduce the issue?

    $connectionString = $this->details['AZURECONNECTIONSTRING'];
    $blobRestProxy = BlobRestProxy::createBlobService($connectionString);

        try{
            $imageblob = $blobRestProxy->getBlob("img", $profileImgUrl);
            if($imageblob){
                $profileImg = $this->details['READPROFILEIMAGE'].'/'.$profileImgUrl;
            }
        }
        catch(ServiceException $e){
            $profileImg = $this->details['READPROFILEIMAGE'].'/profile/default.jpg';
        }
    }
    return $profileImg;

Azure / azure-storage-php