Catch Box Pro 4.9.3

I was not able to upgrade to Catch Box Pro 4.9.3. I tried to upload the folder to my server by two different FTP protocols (Cyberduck & FileZilla) and both times a critical error message appeared and all of the files failed to transfer. I reuploaded Catch Box Pro 4.9.2 with no problem so it looks like the problem is specific to version 4.9.3.