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Using .htaccess is not configured

If only index.php is working, but for example /login gives an 404 error, check the apache config if using .htaccess files is enabled.

In the httpd.conf there should be something like that:

<Directory "/var/www/html/public">
    Options Indexes FollowSymLinks

    AllowOverride All 

    Require all granted
</Directory>

Ensure that AllowOverride is All and not None!