[Plugin: Online Backup for WordPress] Scheduling backup stopped work

Hi,

I’ve problem with scheduled backup for last 2 months. Worked perfect before, and manual backup still works fine. I also tried to schedule it at differend days, but with no luck…

I have PHP 5.2.17 / Apache 2.2.22 on my hosting (hostgator), WordPress 3.4.2, plugin Online Backup for WordPress ver. 2.2.6

Here is the full log:

20th Sep 2012 12.30.20 AM Warning The backup timed out too many times and no progress was made on any attempt. Your server may be running extremely slow at this time – try scheduling the backup during a quieter period.
—
20th Sep 2012 12.01.18 AM Warning Table ‘wp_openid_trust’ has no PRIMARY or UNIQUE key! Backup of this table may be inconsistent; some rows could get missed. See FAQ for more information.
—
20th Sep 2012 12.01.18 AM Warning Table ‘wp_lj_comments_users’ has no PRIMARY or UNIQUE key! Backup of this table may be inconsistent; some rows could get missed. See FAQ for more information.
—
20th Sep 2012 12.01.18 AM Warning Table ‘wp_lj_comments_meta’ has no PRIMARY or UNIQUE key! Backup of this table may be inconsistent; some rows could get missed. See FAQ for more information.
—
20th Sep 2012 12.01.18 AM Warning Table ‘wp_lj_comments’ has no PRIMARY or UNIQUE key! Backup of this table may be inconsistent; some rows could get missed. See FAQ for more information.
—
20th Sep 2012 12.01.18 AП Information Backup starting…

warnings about keys in table also have place in a manual backup case, so I don’t think that’s the problem.
Very appreciate for any help or any thoughts what can make a problem

UPD: Just notice I can set hours and minutes in plugin’s settings 🙂 Will try to test scheduling in different hours also – maybe it’s my host realy works bad everyday at 12:00 AM… Will post results

http://wordpress.org/extend/plugins/wponlinebackup/