strange dot

Hi, don’t know whats happened… I use the plugin to display random picture (with a link) in my posts. For whatever reason there is a DOT shown above the pictures, see my attached picture: https://www.eckgolds-fotoecke.de/images/dot-randomize.jpg or have a look at my blog: https://www.eckgolds-fotoecke.de/enjoy-the-shower/

Thanks