If you've received an error that reads "Donation processing is not set up properly for this campaign." 

In order to enable your site to take donations, you'll need to add a credit card on file that can be charged once your free trial any paid plan has reached its 7 day limit.

Here's how you can add a card and enable donations:

Step 1: Under Account Settings (gear icon), select Billing.

From here, you can view your plan or easily select a new plan.

Step 2: Select Add A Credit Card to enter and save your credit card information. You can update this information at any time.

Once your info is entered, you won't be billed immediately, you'll stay on your free trial. If you'd like to subscribe to the Standard, Plus, or Premium plan instead, you can do so on your Billing page. 

You're able to upgrade your monthly plan or suspend your account at anytime.