How to connect with PayPal on my form

I'm trying to set up a simple form that accepts donations via PayPal.  Our organization has a PayPal account, but for some reason the connection via Jotform is failing.  Why isn't it connecting?

Thanks - 

Yes - integrated with donation option, but this is what users see:  "loading smart payment buttons...".  What am I missing?

 I checked your form and apparently, your payment is integrated with donation option:

If you have any further questions, please let us know.

Thank you!

This is about the same question:  When I tried to complete the form, I got this error message:

There is a problem with the payment integration.  Can you help me with this?

Hi @dweinapple!

Please make sure you finish setting up your PayPal Checkout integration before proceeding. Click on Payment Settings (the Wand button)>Connect with PayPal. Please follow this guide to make sure PayPal Checkout is set up correctly on your form. 

Guide: How-to-Integrate-Form-to-PayPal-Checkout

I followed the How-to-Integrate-Form-to-PayPal-Checkout guide step by step, in live mode.  Connected successfully:

I input a donation amount and then still get "Order ID is missing from the form submission".  I don't understand why it's not working.  

Ah!   I ended up googling the error message, and found this page:  https://www.jotform.com/answers/1825841-Order-ID-is-missing-when-form-is-submitted

Turns out you have to click on the paypal checkout button AND make the payment field a required field.  It works!

Great, thank you for letting us know!

If you have any further questions, please get back to us.

Thank you!