Hi Karen-
I’m sorry to hear that your backups aren’t working correctly. In order to figure out what might have gone wrong, can you check your backup archive log for us?
Navigate to Total Upkeep > Tools > Logs and check the log file with a name like archive-XXXXXXX.log
with a timestamp corresponding to one of your failed backups.
If you’re able to reply here with the text in that log file, we’ll be able to take a closer look at what’s going on.