Button stay after deinstallation

I tried your plugging but it was really all messed up with my slider and my shortcode content. I tried to remove the logo from the setting and it stayed. I desinstalled the plugin and I still see your button!! Cache has been emptied… Whats the matter?

Thanks

https://ww.wp.xz.cn/plugins/pinterest-pin-it-button-on-image-hover-and-post/