social media widget icon not appearing in explorer

Hi,

I’ve installed social media widget and the icons are not appearing in explorer.

I wanted to do custom icons, but I couldn’t get the custom URL to work, so I went into wp-content/plugins/images and replaced the plugin default images with my own icons. It worked beautifully.

However, the icons aren’t appearing in explorer. Not sure if it’s because of what I did above…
Please help!

Here’s my website:
anniehearts.com

Thanks,
Annie