Core:Archive error (3 replies)

There are no errors in the archive log file but the cronjob emailed this error:

"ERROR CoreConsole[2014-07-14 03:29:36] [a700c] Got invalid response from API request: http://mysite.org/index.php?module=API&method=CoreAdminHome.runScheduledTasks&format=csv&convertToUnicode=0&token_auth=dc328ef21fab6e89e1f85da7e1939e3d&trigger=archivephp. Response was 'PHP Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 64 bytes) in /var/www/core/DataTable/Row.php on line 76 '
ERROR CoreConsole[2014-07-14 03:29:36] [a700c] 1 total errors during this script execution, please investigate and try and fix these errors."

The archive log file is currently here:

"INFO CoreConsole[2014-07-14 09:43:08] [f04fb] Archived website id = 19, 4 API requests, Time elapsed: 492.606s [15/17 done]
INFO CoreConsole[2014-07-14 09:43:12] [f04fb] Archived website id = 20, period = day, 4 visits in last last2 days, 2 visits today, Time elapsed: 3.641s
INFO CoreConsole[2014-07-14 09:43:30] [f04fb] Archived website id = 20, period = week, 72 visits in last last2 weeks, 2 visits this week, Time elapsed: 18.274s
INFO CoreConsole[2014-07-14 09:45:28] [f04fb] Archived website id = 20, period = month, 487 visits in last last2 months, 121 visits this month, Time elapsed: 117.709s"