The correct is easy, just add in your tutorial that should they obtain this error all they need to do is so as to add this line to their /etcetera/apache2/apache2.conf file working with sudo nano /and so on/apache2/apache2.conf, visiting the finish from the file and incorporating it, then S, followed https://apache-support-service99998.blogs100.com/28649111/apache-web-server-support-things-to-know-before-you-buy