The last lines in the log file appear when you access Akeeba Backup's Control Panel page or start a new backup. When you do that, Akeeba Backup tries to detect "stuck" backups, mark them as failed and delete the (partial) backup files. It does so by iterating through all of your profiles, trying to load the engine state and check for a special flag. The log lines you receive have to do with the attempt to load the engine state. Since your backups are complete, the engine state information file is removed, hence the "hard reset" message; it is perfectly normal, expected and desirable. That's also why you see there is a huge time gap between the last log even and those messages.
As about the "Failed" message in the Administer Backup Files page, the only way I have been able to replicate is when the update of Akeeba Backup was partial and the backup.php file (or some of the engine files) were not overwritten with the new records. The easiest way to fix that is uninstalling Akeeba Backup and reinstalling it. The only drawback is that you will lose your current settings. It's also worth noting that I have never tested Akeeba Backup with PHP 5.3.3, because PHP versions 5.3.2 and 5.3.3 are considered buggy. My tests were conducted with 5.3.1, 5.3.5, 5.3.7, 5.3.9 and 5.3.10. I'd suggest also upgrading your PHP version, in case one of the numerous bugs is affecting Akeeba Backup (I have no way to check that, sorry).
Finally, regarding the extraction, in the case of Kickstart seem to be entering the wrong password. That's why it fails at offset 8 (offset 8 is right after the file header, where the encrypted data starts). Either that, or the target server doesn't have mcrypt installed or doesn't support the AES (Rijndael) encryption scheme in PHP's mcrypt extension. Regarding the Akeeba eXtract Wizard failing after 33% of extracting, I need to know if it has extracted any files, if they are properly named and if their contents are garbled or not. If the filenames or the file contents are garbled, you are entering an incorrect password. If not, you may be missing backup parts (you need the .jps as well as the .j01, .j02 and so on files created during the backup).
Nicholas K. Dionysopoulos
Lead Developer and Director
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