When you are experiencing a problem with ‘Permalink Settings’ on ‘WordPress’, please try these solutions.

Add '/index.php/' simply at Custom Structure on 'Permalink Settings'

There could be a problem in ‘.htacess’, ‘AllowOverride’, ‘rewrite module’, ‘permissions’ or others.

IF YOU ARE TOO TIRED TO FIND THE CAUSE, JUST DO BELOW

You can just add ‘index.php‘ then the web page will be shown as ‘http://YOURDOMAIN/index.php/YOURPAGE’

Read More

If you don't like 'index.php', Change 'Virtual Hosts' and 'apache2.conf' for 'AllowOverride All'

sudo vi /etc/apache2/sites-enabled/000-default.conf

Copy to Clipboard

 

vi /etc/apache2/apache2.conf

Copy to Clipboard

 

#sudo apachectl configtest
Syntax OK

# a2enmod rewrite
Module rewrite already enabled

#sudo systemctl restart apache2