Trying to run upgrade script on wordpress civicrm gives me a new login screen followed by another chance to click the upgrade button follow by another login screen. civicrm 4.6.9 from 4.6.8 wordpress 4.3.1

How do I flush cache on Wordpress?

Warning: Illegal string offset 'type' in /home/mygriefandloss/public_html/wp/wp-content/plugins/civicrm/civicrm/CRM/Core/BAO/Setting.php on line 613

Warning: Illegal string offset 'group_name' in /home/mygriefandloss/public_html/wp/wp-content/plugins/civicrm/civicrm/CRM/Core/BAO/Setting.php on line 516

These errors happen when I just try to access civicrm from menu.

  • 1
    I don't have Wordpress but I'm assuming CiviCRM's settings are the same. Have you tried Administer --> System Settings --> Cleanup Caches and Update Paths?
    – Kristine
    Commented Oct 25, 2015 at 17:06
  • Warning related to 'group_name' can be a cause of mailchimp extension. Do you have that installed? Try disabling mailchimp extension to confirm. Commented Jun 14, 2018 at 14:44

1 Answer 1


The answers here list a few different ways to clear cache: How to clear the caches in WP / Wordpress or Drupal via url? including on WordPress.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.