Hide Title option missing

I need the title of every page hidden. But the problem is not with the site but with the plugin. The plugin used to work and I had the “hide title” option on the bottom right of the page (Document settings). I accidentally clicked on the button to the left of the minimise setting button (between the option title and the minimise button) and now I can’t see that option aywhere. I have tried deactivating the plugin and reactivating it. does not work. How do I get the plugin to show in the document options again? The page I need help with: [ log in to see the link] And yes, I have gone to the hamburger menu, gone to options and ensured that the Hide Page and Post Title option is ticked. It is just not showing as an option anymore Don’t worry. Uninstalled and installed another plugin that works.