All i get is the attached screenshot.
Looks like your webserver is not setup for handling PHP files.
My server can handle PHP fine. Since i’ve added this line to the .htaccess, the webpage is broken:
AddType x-mapp-php5 .php
AddHandler x-mapp-php5 .php
May I ask, why you added these lines? They are not needed for Matomo.
So your webhost only supports PHP < 5.3? If that is the case, follow this line from your linked guideline
If this does not work, please contact your web host and they should enable the latest PHP version for you.
If your webhost has PHP > 5.3, remove the lines and try again.