Facing Error During Uploading A DICOM File at Live Orthanc Server

Hello

  1. When I am trying to upload a DICOM file(557MB) directly at live Orthanc server then after some time uploading failed and showing 400: Bad Request Error in browser console.

  2. And when I am trying to upload a DICOM file(824MB) directly at live orthanc server its immediately failed and showing following error in console:

POST http://xxxx.xxxx.xxx.xxx:8042/instances/ net::ERR_CONNECTION_RESET

Uncaught TypeError: Cannot read property ‘getBitrate’ of null
at $.(anonymous function).(anonymous function)._onProgress (http:///xxxx.xxxx.xxx.xxx:8042/app/libs/jquery-file-upload/js/jquery.fileupload.js:269:48)
at XMLHttpRequestUpload. (http:///xxxx.xxxx.xxx.xxx:8042/app/libs/jquery-file-upload/js/jquery.fileupload.js:290:26)
at XMLHttpRequestUpload.dispatch (http:///xxxx.xxxx.xxx.xxx:8042/app/libs/jquery.min.js:3:4816)
at XMLHttpRequestUpload.i (http:///xxxx.xxxx.xxx.xxx:8042/app/libs/jquery.min.js:3:709)

Note: My Orthanc server hosted at Digital Ocean

What is the problem and how to fix this?