Install apache2-suexec-pristine by entering the following commands in the terminal:
sudo apt update sudo apt install apache2-suexec-pristine
Description:
Apache HTTP Server standard suexec program for mod_suexec
Provides the standard suexec helper program for mod_suexec. This version is compiled with document root /var/www and userdir suffix public_html. If you need different settings, use the package apache2-suexec-custom.
Homepage: http://httpd.apache.org/
Version: 2.4.29-1ubuntu4.1
Section: universe/httpd