This report is very ambiguous and I can't make much of it.
"This" can mean: upgrading using the update notification email, upgrading using the Live Update, upgrading by installing it through the Joomla! installer, installing for the first time, taking a backup or restoring a backup.
"Wiped out" can mean: my files are gone, my database contents are gone, nothing is really gone but I can't login to my site.
These are 18 different things you might be asking support for. I'll take a wild guess: upgrading Akeeba Backup (usually through the update notification email) results in you being unable to login to your site. This issue
is very well documented in our Troubleshooting Wizard and has nothing to do with Akeeba Backup.
Some further thoughts on that troubleshooting article and why it exists. Needless to say, the Joomla! session bug was squashed by yours truly, the patch is accepted and Joomla! 1.7.1 onwards won't suffer from it. The other Joomla! installation bugs are worked around as of Akeeba Backup 3.3.4. The remaining issue (user doing something funky with the Joomla! view levels and forgetting it until he logs out from his site) is obviously not something I can work around because it has no correlation with what I do in Akeeba Backup; that's a user issue and I'm documenting the workaround because people always think that Akeeba Backup is to blame. That's understandable. The last thing you remember installing is always to blame, right? More so when you perform an update through the one click action email which starts a new user session and makes the problem evident. But it's not
caused by Akeeba Backup.
If I made the wrong wild guess, please start a new thread, explain what "this" and "wiped out" means and I can help you fix it without losing your work. There's no code in the installation or backup procedure which can delete anything on your site, so it's easy to work around it. If the problem happened during restoration, then you'll already have a backup and we can easily work around this issue. I just need to know which of the 18 possible problems you might be reporting is going on so that I can properly assist you.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!