I'm trying to install the mailchimp addon but are stuck on getting the error message above.
- I've installed/enabled the module with version 7.x-4.0
- Loaded the PHP Library to /sites/all/libraries/mailchimp
- Added the API Key to /admin/config/services/mailchimp
- Enabled the MailChimp Signup module
The error occurs after enabling the signup module and freezes the whole website with a blank screen even though error messages are being fully displayed. When I uninstall the signup module via drush and check the admin page for the service my API key is still set.
Any pointers what I'm doing wrong?