I'm getting a fatal error on a clean install on Windows when a user tries to submit and confirm for free membership. I'm using version 1.7.01.
Fatal error: Call to a member function cancel() on a non-object in C:\wamp\www\wordpress\wp-content\plugins\paid-memberships-pro\preheaders\checkout.php on line 981
I'm also unable to manually assign membership to a user in the admin.
Any help would be much appreciated.