404 Error While Uploading Images

When uploading images to any gallery or even the "All Photo" section we get a 404 error.  The image tries to load but about 3/4 through it fails.  We use Amazon S3 but those settings haven't changed in years. Anyone have experience with this?

Thanks!

That means you or your host have done something to make some of the Sytist files disappear from the server. 

You will need to download the Sytist files from your original order here and upload the contents of the sy-admin folder into the sy-admin folder on the website. 

Worked like a charm!  I had uploaded the new Sytist files yesterday via Cpanel but still had the problem.  Today,  I uploaded them using FTP and they overwrote just fine.  Looks like the Cpanel upload was hanging on 0 byte files and would not finish replacing files.

Use your FTP uploader boys & girls!

Thanks!