Then list the backup settings as you have them. Or google how to do screenshots on your computer. If you want to get the most out of the forums, you need to give us as much information as possible. So far, you have not given us much to go on.
What do you mean you did maintenance in cron? You should have added a line to your cron - what was it? Look at Site Admin/Maintenance and see if there is a date there showing what time cron ran last.
Please answer my other questions about how you know backups aren't running and if you are getting emails from the site..