I was able to upload, it must have been some cache problem. The plugin is very good, but it only needs one thing to be perfect, which is to have a photo option to highlight the topic. Because it loads image by itself and if the image is large, or several topics have large images, the page is too heavy to load. This would be resolved with the featured image option in the topic. These featured images would serve both this plugin and the Open Graphic facebook tag. It would be perfect for those who need to spread the topics on social networks. The featured image would also solve the problem of topics without photos... and pagination for pages with many topics: https://www.mochileiros.com/mochilao/