title: Moodle doesn't open files from one specific course
body: <p>the enterprise I work for owns a Moodle website with many courses. In all of them, we attach many files .doc or .pdf, so that users can download and read them. The problem is, in one of them - without apparent reason - users can't get the files. When clicking on a file, the website displays a message that goes more or less like this "You are already logged in as yourself. Exit and log as another user to see the file". Even if you do what the message is asking, nothing changes: you still get the same message and the files can't be downloaded or opened at all. <strong>And just in this specific course!</strong></p>
  
  <p><img src="https://i.stack.imgur.com/2wJ9J.png" alt="Message print"></p>
  
  <p>Note: I'm not trying to access the log in page while already logged, as some people in other forums suggested. I'm trying to <strong><em>OPEN/DOWNLOAD a file</em></strong>, just that! I have to be logged in order to see the links to the files, so there is no call for going to the login page again.</p>