Those frames are the sub category images. As you have set non image, it just displays that blue frames.
Add this to custom.css and clear the cache.
#subcategories ul li .subcategory-image a {
display: block;
padding: 9px;
border: 1px solid #f6f6f6;
visibility: hidden;
}
If this doesn't work, modify code in themes/classic/assets/css/theme.css:72
Those frames are the sub category images. As you have set non image, it just displays that blue frames.
Add this to custom.css and clear the cache.
#subcategories ul li .subcategory-image a {
display: block;
padding: 9px;
border: 1px solid #f6f6f6;
visibility: hidden;
}
If this doesn't work, modify code in http://www.savigynai.lt/themes/classic/assets/css/theme.css:72