Empty all the server caches in your cache plugin settings. If it doesn’t work, try less restrictive shortcode options, e.g.: [most_read_posts type=“most“ posts_number=“4″]
Hi,
what did you enter on the “Word color” widget field? If empty, you should see random colors, otherwhise the color you chose (in this case, I see #35abef).
Hi,
it’s quite strange, the font sizes are rendered by the standard “wp_tag_cloud” WordPress function. Are the standard Tag Cloud font sizes working on your site?