I just saw a behaviour that repeats everytime. If I access my menus and change the position of let's say the menu "Actualitate" with "Politica", the posts appear suddenly. And if I change their position as it was before, the posts appear where it should. This is really annoying...
Let's say I make this slight adjustment by changing some positioning, but the problem continues when I want to delete a post. If you're not logged in, you will still see the post with the thumbnail and the excerpt in the menu, but when you want to see the post and click on it, it says that it can't be found. I don't know what's the problem. This issues appeared only after I replaced the menu items that were pages with categories, because I wanted recent posts to be displayed in a certain menu by category.
And another thing. When you're not logged in, the page appears slightly different from the page that appears when you're logged in. Meaning that if I erase a post, that post still appears when you're not logged in. I have a sidebar widget that displays my recent posts and the post I erased is present there too. But if I change the positioning of the menu items again, it dissappears. I really don't understand what's happening.