title: Firebase Database connection was forcefully killed by the server in flutter
body: <p>Working on a flutter app, I added the Firebase connection.
  Can anyone assist me in solving this issue, please? When I'm attempting to log in, I get this error.</p>
  <blockquote>
  <p>Error: pc_0 - Firebase Database connection was forcefully killed by the server. Will not attempt reconnect. Reason: Firebase error. Please ensure that you spelled the name of your Firebase correctly</p>
  </blockquote>