cron job returns db "error: syntax error"

Original thread first reported on the forum: http://forum.civicrm.org/index.php?topic=32909

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I am running Wordpress 3.9.1 and CiviCRM 4.4.5.
Trying to set up my first automated report via cron to mail myself a contribution report every month.
Initially, I received a permissions error in the job log under Scheduled Jobs and after referring to this thread, I gave the Wordpress anonymous user access to CiviReport. This fixed the permissions problem but now I receive a db error. The "Mail reports" Scheduled Job uses api.job.mailReport. Any help is appreciated. Thank you.

Below is an extract from the "Scheduled Jobs Log" under Administer – System Settings – Scheduled Jobs – View Job Log.

Summary
Finished execution of Mail Reports with result: Failure, Error message: DB Error: syntax error
Details

Parameters raw (from db settings):
instanceId=38
format=print

Parameters parsed (and passed to API method):
a:3:

{s:7:"version";i:3;s:10:"instanceId";s:2:"38";s:6:"format";s:5:"print";}

Full message:
Finished execution of Mail Reports with result: Failure, Error message: DB Error: syntax error

Below is an extract from the CiviCRM log file under wp-content/plugins/files/civicrm/ConfigAndLog that provides more detail on the error:

May 29 13:45:02 [info] $backTrace = #0 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/Error.php(770): CRM_Core_Error::backtrace("backTrace", TRUE)
#1 [internal function](): CRM_Core_Error::exceptionHandler(Object(DB_Error))
#2 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/PEAR.php(931): call_user_func((Array:2), Object(DB_Error))
#3 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB.php(969): PEAR_Error->PEAR_Error("DB Error: syntax error", -2, 16, (Array:2), "CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#4 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/PEAR.php(564): DB_Error->DB_Error(-2, 16, (Array:2), "CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#5 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB/common.php(1905): PEAR->raiseError(NULL, -2, NULL, NULL, "CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...", "DB_Error", TRUE)
#6 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB/mysql.php(898): DB_common->raiseError(-2, NULL, NULL, NULL, "1064 ** You have an error in your SQL syntax; check the manual that correspon...")
#7 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB/mysql.php(327): DB_mysql->mysqlRaiseError()
#8 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB/common.php(1216): DB_mysql->simpleQuery("CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#9 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB/DataObject.php(2421): DB_common->query("CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#10 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/DB/DataObject.php(1613): DB_DataObject->_query("CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#11 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/DAO.php(160): DB_DataObject->query("CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#12 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/DAO.php(908): CRM_Core_DAO->query("CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...", TRUE)
#13 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Report/Form/Contribute/Detail.php(605): CRM_Core_DAO::executeQuery("CREATE TEMPORARY TABLE civireport_contribution_detail_temp2 AS SELECT contact...")
#14 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Report/Form.php(620): CRM_Report_Form_Contribute_Detail->postProcess()
#15 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Report/Form/Contribute/Detail.php(386): CRM_Report_Form->preProcess()
#16 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/Form.php(351): CRM_Report_Form_Contribute_Detail->preProcess()
#17 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/QuickForm/Action/Display.php(93): CRM_Core_Form->buildForm()
#18 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/HTML/QuickForm/Controller.php(203): CRM_Core_QuickForm_Action_Display->perform(Object(CRM_Report_Form_Contribute_Detail), "display")
#19 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/packages/HTML/QuickForm/Page.php(103): HTML_QuickForm_Controller->handle(Object(CRM_Report_Form_Contribute_Detail), "display")
#20 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/Controller.php(339): HTML_QuickForm_Page->handle("display")
#21 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Utils/Wrapper.php(117): CRM_Core_Controller->run()
#22 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Report/Utils/Report.php(373): CRM_Utils_Wrapper->run("CRM_Report_Form_Contribute_Detail", NULL, (Array:2))
#23 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/api/v3/Job.php(236): CRM_Report_Utils_Report::processReport((Array:3))
#24 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/api/api.php(87): civicrm_api3_job_mail_report((Array:3))
#25 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/JobManager.php(132): civicrm_api("Job", "mail_report", (Array:3))
#26 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/CRM/Core/JobManager.php(88): CRM_Core_JobManager->executeJob(Object(CRM_Core_ScheduledJob))
#27 /home/ashraya/www/www/wp-content/plugins/civicrm/civicrm/bin/cron.php(42): CRM_Core_JobManager->execute()
#28

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