Donate button: pixel.gif

I just installed this plugin and used the shortcode to display the button. For some reason, the button image tag references https://www.paypal.com/en_US/i/scr/pixel.gif

It is possible that this is a theme problem more than a plugin problem?(I’m using Bandzone by AitThemes) I’m hoping that it is not the theme since my client has already bought it.

Thanks in advance.

http://wordpress.org/extend/plugins/paypal-donations/