Hi there,

How set to display no page 404, but the login page ?

**edit
You can achieve this by enable "Enable Error Redirection" at Backend>Component>Easydiscuss>Settings>Advanced>Enable Error Redirection

Note:
This is known issues. We have fixed this on a our latest EasyDiscuss version that is v4.0.8. If you are using older version, we recommend you to do update/upgrade your Easydiscuss.