WordPress database error: [Column 'subscription_id' cannot be null]
INSERT INTO `wp_subscriptions` (`subscription_id`, `status`, `email`, `cancel_url`, `update_url`, `subscription_plan_id`, `next_bill_date`, `passthrough`, `api_key`) VALUES (NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 'd41d8cd98f00b204e9800998ecf8427e')