CiviCRM Community Forums (archive)

I keep getting this error when trying to set up a mailing
"Sorry. A non-recoverable error has occurred.
We can't load the requested web page. This page requires cookies to be enabled in your browser settings. Please check this setting and enable cookies (if they are not enabled). Then try again. If this error persists, contact the site adminstrator for assistance.

Error type: Could not find a valid key."


I have run through all the civicrm.settings and resource urls to ensure they are matching
Flushed the templates C
changed the htaccess to remove www

and still getting this error
Any suggestions
Running 3.15

This is the backtrace error
/home/dunamis/public_html/sites/all/modules/civicrm/CRM/Core/Error.php, backtrace, 257
/home/dunamis/public_html/sites/all/modules/civicrm/CRM/Core/Controller.php, fatal, 225
/home/dunamis/public_html/sites/all/modules/civicrm/CRM/Core/Controller.php, key, 158
/home/dunamis/public_html/sites/all/modules/civicrm/CRM/Mailing/Controller/Send.php, __construct, 46
/home/dunamis/public_html/sites/all/modules/civicrm/CRM/Core/Invoke.php(211) : eval()'d code, __construct, 1
/home/dunamis/public_html/sites/all/modules/civicrm/CRM/Core/Invoke.php, eval, 211
/home/dunamis/public_html/sites/all/modules/civicrm/drupal/civicrm.module, invoke, 349
, civicrm_invoke,
/home/dunamis/public_html/includes/menu.inc, call_user_func_array, 348
/home/dunamis/public_html/index.php, menu_execute_active_handler, 18