I have a module "login" wich represents a Login button. It's assigned to the possition "nav-helper".
This module dissapeared in the backend. When I search positions for "nav-helper" I only find the logout button. Even when I search for any module with "login" in it's name it does not come up.
However, the module is stilly properly displayed on the frontend and working.
I'm using Joomla 3.8.2 with the Porto template.
FYI the hompage wa just brought live on a different server. Everything else works. The only thing wrong is this one missing module.
Update: We got our development server back running, where I constructed and worked on the webpage before it was brought live on a different server. On this test server the module is still there. So it just vanished on our live joomla in the backend, and again it works fine on the frontend.