The form loads correctly for me and I cannot see any errors or warnings that would indicate an issue with your site. That said, the the performance of the donation form is poor. It took up to 3 seconds to load on a fast (gigabit) connection and up to 8 seconds on a mobile 4G connection.
As I couldn't reproduce the issue, I don't have any bright ideas. My only advice is to look at alternative donation platforms that offer better support. I'm sure you can't afford to miss out on donations 🙂
You have a 7.1 site, so this doesn’t have Ajax Page Loading. The issue must be caused by something else. What code is being used? What are the symptoms?
