Having trouble with Paypal Button

Hi there,

Okay so I just created this paypal button through Paypal’s website. I have copied and pasted the html code on the page which I have mentioned in the field above. I updated it, and although the button does appear a the bottom of the page where I want it, it turns out that the button doesn’t work and honestly I don’t know what or why it is. I have looked at posts of other people asking about the same issue but answers either didn’t work or I didn’t really understand. So if someone can please help me out with this would be wonderful! Thanks!

The page I need help with: [log in to see the link]