Yellow Background / Multiple Widgets

Hello,

I’m new to Google Adsense and so I’m not sure if this is an obvious question/issue or not: When I use your widget, the add appears partially but has a bunch of yellow background showing, too. It’s like only part of the ad is there. Why is this? Is this a Google Adsense issue or a plugin issue?

Also, I have two sidebars and I want to use both of the adsense blocks in both of them. However, once I use a widget, it’s no longer available. Maybe I need to duplicate the code so that I’m actually using four of your block items so I can reuse the code in two places?

https://wordpress.org/plugins/quick-adsense/