Since some time ago social icons are not displayed correctly, instead letters and numbers appear. I’ve regenerated thumbnails but it doesn’t work. I think it may be since I installed a plugin called Magic Action Box, is it possible?
Icon fot appears to load fine, however, I noticed that you have added a lot of code to your Child Theme style.css but you haven’t commented out comments from it.
You see that To change sidebar width. is added between/* */ and this is how all comments should be commented out, so web browser wouldn’t attempt to interpret it as CSS styling.