Don’t know what caused it but the images of the post’s previews on the home screen doesn’t show up.
They do show up on all other sections of the blog.
What am I missing?
See here: https://blog.udiburg.com/
Did you make any changes to the theme code/functionality or using a plugin related to images handling?
For some reason the featured boxes don’t include the markup for the <img> tags but only the images URLs as plain text.