1) Your file "ray/.htaccess" is either corrupted or does not exist. Make sure that you do have the file "ray/.htaccess", which contains the following line of code:
** WARNING ** -- We highly advice NOT to turn off SecFilterEngine. DO NOT put SecFilterEngine off in your ray/.htaccess file. It will turn off the our anti-hacker system for your website, and a hacker can easily hack your site thru remote file inclusion vulnerability. Instead, put SecFilterEngine on in your ray/.htaccess file.
2) Your file "ray/modules/global/app/ffmpeg.exe" doesn't have correct permission of 777 (readable, writable, executable). To resolve this situation, simply change the file permission to 777 thru your CPanel File Manager (or thru your FTP Client).
3) You have incorrect permissions for the following folders. These folders must have 777 permissions:
4) Make sure that you have set your audio/video widget settings to allow larger file uploads.
If you are still unable to resolve the "Uploading File Error", just open a support ticket and our support techs will help you out right away.