Below is an error message I've gotten every night this week trying to back up. I didn't see any backup posts about this one specifically. I can backup manually with no issue. File sizes look to be accurate. It's only the automatic ones that are failing. "3CX Phone System tried to backup but failed due to the following reason(s): System.Net.FtpClient.FtpCommandException: Internal error renaming the file at System.Net.FtpClient.FtpClient.Rename(String path, String dest) at _3cxBackupRestoreImpl.Filesystem.FTP.FtpFilesystem.Move(String filename1, String filename2) at BackupRestoreSchedule.BackupJob.Execute(IJobExecutionContext context)"