... do disable http://server/server-status in Apache Web Server

root@lxc-lamp /var/www# a2dismod status
Module status disabled.
To activate the new configuration, you need to run:
  systemctl restart apache2
root@lxc-lamp /var/www# systemctl restart apache2
root@lxc-lamp /var/www# 

This tutorial is going to show you how to install LAMP stack on Ubuntu 20.04 LTS. LAMP stands for Linux, Apache, MariaDB