Your problem is that your backup archive is corrupt. Reading the backup log (more on that later) I can see that your backup archive is corrupt because you are backing up server error logs whose size changes during the backup. These are:
administrator/components/com_joomlaupdate/error_log
administrator/components/com_mijosef/library/error_log
administrator/components/com_mijosef/library/autocompleters/error_log
templates/atomic/error_log
templates/beez_20/error_log
templates/beez5/error_log
plugins/system/rokupdater/error_log
components/com_joomforce/captcha/error_log
components/com_roksprocket/layouts/strips/themes/default/error_log
I would suggest creating a regex filter to exclude them from the backup. Go to Akeeba Backup and click on Regex Files and Directories Exclusion. Add a new filter of type "Exclude file" with the following Filter Item definition (copy it verbatim):
#error_log$#
Moreover I see that you have a huge log file in Joomla17/logs/rokcommon.php (size: 542 Mb!!!!). You do not need to and must not back this up. I would suggest deleting it, or at the very least use Files and Directories Exclusion to remove it from the backup. The same applies for Joomla17/logs/error.php (another 36 Mb of useless data).
Now retry backing up. Your backup archive will be
significantly smaller, most likely around 10-20Mb (as it's not backing up the useless, big and problematic error logs) and should restore just fine.
Pro tips or how I know how to help you:
- Search the backup log file for error_log These are PHP error log files that should not be backed up and can be safely excluded from backup. The thing with error logs is that they can change size during the backup process. Most often this leads to a corrupt backup archive. That's what happened in your case.
- Search the backup log for the phrase Breaking step _before_ large file. This will let you know which are the really big files (over 10Mb) being backed up. It is followed by the path to the file and its size in bytes. If the file/directory name contains log, logs or error you can be pretty sure you should not be backing it up as it's an error log. If you see a .jpa, .jps, .zip, .j01/.j02 etc or .z01/.z02 etc files you know that you are backing up old backup archives, which should be avoided (unless you like bloated backups that are very hard to handle).
Really, that's all the "magic" I used to help you out and now you know how to deal with these issues too.
Nicholas K. Dionysopoulos
Lead Developer and Director
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