500 Server Error importing Contacts

[AndyHarkness]

I'm trying to import about 7000 contacts. Unfortunately I get a server error any time I try and import more than about 200 contacts. Could anybody give me a few points as to how to go about fixing this?

Here is the log:

Jun 17 15:13:39  [info] $Fatal Error Details = Array
(
    [message] => Could not find valid value for ct
   

Code: [Select]

=>
)


Jun 17 15:13:39  [info] $backTrace = #0 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/Error.php(322): CRM_Core_Error::backtrace("backTrace", TRUE)
#1 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Utils/Request.php(106): CRM_Core_Error::fatal("Could not find valid value for ct")
#2 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Contact/Form/Contact.php(153): CRM_Utils_Request::retrieve("ct", "String", Object(CRM_Contact_Form_Contact), TRUE, NULL, "REQUEST")
#3 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/Form.php(351): CRM_Contact_Form_Contact->preProcess()
#4 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/QuickForm/Action/Display.php(93): CRM_Core_Form->buildForm()
#5 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/packages/HTML/QuickForm/Controller.php(203): CRM_Core_QuickForm_Action_Display->perform(Object(CRM_Contact_Form_Contact), "display")
#6 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/packages/HTML/QuickForm/Page.php(103): HTML_QuickForm_Controller->handle(Object(CRM_Contact_Form_Contact), "display")
#7 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/Controller.php(339): HTML_QuickForm_Page->handle("display")
#8 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Utils/Wrapper.php(117): CRM_Core_Controller->run()
#9 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php(297): CRM_Utils_Wrapper->run("CRM_Contact_Form_Contact", "New Contact", (Array:1))
#10 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php(72): CRM_Core_Invoke::runItem((Array:13))
#11 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php(52): CRM_Core_Invoke::_invoke((Array:3))
#12 /var/www/vhosts/somesite.com/httpdocs/wp-content/plugins/civicrm/civicrm.php(470): CRM_Core_Invoke::invoke((Array:3))
#13 [internal function](): CiviCRM_For_WordPress->invoke("")
#14 /var/www/vhosts/somesite.com/httpdocs/wp-includes/plugin.php(470): call_user_func_array((Array:2), (Array:1))
#15 /var/www/vhosts/somesite.com/httpdocs/wp-admin/admin.php(211): do_action("toplevel_page_CiviCRM")
#16 {main}

[flug]

Usually this is due to simply running out of memory/cpu/resources/php timeout or the like on your server.  There are a number of threads around the forums dealing with this.  You might be able to tweak your server parameters to raise the number higher than 200 but in the end you'll probably have to break the import into small groups of some size.

FYI I just did and import and had to break the import into group of 20 (!).  Note sure why, as previously I could get several hundred anyway.  But now it won't even do 50.  Server timeouts of some sort.