My Hosted Button is Not Working -- It did a few days ago -- System outage or personal problem?

[campopportunity]

My PayPal Hosted Button is not rendering the page. It just spins with the "Please wait... " text. Is this a system outage, an account problem, or an issue I can correct? This same behavior occurs when using the javascript snippet for posting via a form.

https://www.paypal.com/donate/?hosted_button_id=R5H6M7TTKUW9N

This is important for our current fundraising campaign. We are missing out on donations, and PayPal is missing out on fees!