Plugin Is Messing with Post Formatting

Hi there! This plugin is listed on many sites around the web as the best free Pin It plugin out there. I got it set up and it was great…. until I noticed that it completely messed up the placement of images on my posts. Is there any way to fix this? I know it’s probably some kind of interference between the plugin and my theme, but I can’t change the theme, so I need to (hopefully) find a way to make the plugin work!

https://ww.wp.xz.cn/plugins/pinterest-pin-it-button-for-images/