Ad placement

Hello, I’m trying to put two ads in widgets in the primary widget area on my website. The first ad is showing up fine, but it is causing all other plugins underneath it to disappear. I can put it at the bottom of the sidebar, which is fine, but when I add a second advertisement, it is placed at the bottom of my page and doesn’t actually show my image. I only know it’s there because I can see it in the customizer on my theme. How can I make the ad actually appear in the widget area where I want it to, and at the size I want?

Thanks

https://www.ads-software.com/plugins/ad-widget/