Unable to Download Data Generated Open edX

This problem occurs because don’t use Amazon S3 to save data generated. To fix it, follow these steps.

-) Login to Open edX server, then create symbolic link from /tmp/edx-s3/grades to /edx/var/edxapp/media.

-) Update nginx configuration of LMS. Find the following snippet codes on the configuration file.

location ~ ^/media/(?P<file>.*) {
    root /edx/var/edxapp/media;
    try_files /$file =404;
    expires 31536000s;
}

Change =404 to /grades/$file or looks like the configuration below.

location ~ ^/media/(?P<file>.*) {
    root /edx/var/edxapp/media;
    try_files /$file /grades/$file;
    expires 31536000s;
}

location ~ ^/grades/(?P<file>.*) {
    root /edx/var/edxapp/media/grades;
    try_files /$file =404;
    expires 31536000s;
}

After that make sure the configuration is not error, use the command sudo nginx -t. And then restart nginx service use the command sudo systemctl restart nginx.