codefiretech/yii-user-management-plugin/master/backend/web/.htaccess

<IfModule mod_rewrite.c>
    Options -MultiViews
    RewriteEngine On
    #RewriteBase /path/to/app
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ index.php [L]
</IfModule>

Order allow,deny
allow from all