This is a way to ensure UTF-8 is always in use.
Also ensure you go to: NodeWorx > System Services > Web Server > Web Server Options > Default Charset: UTF-8 as-well as the below:
Edit one account
nano /etc/httpd/conf.d/vhost_domainname.com.conf
Add this line before the: </VirtualHost>
AddDefaultCharset utf-8
and then restart apache service httpd restart
Set it as DEFAULT
nano /home/interworx/etc/vhost-base.conf
Add this line before the: </VirtualHost>
AddDefaultCharset utf-8
and then restart apache service httpd restart