Install Mautic 4 from scratch, on Ubuntu 18.04 or Ubuntu 20.04 server failed

Product Support Mautic 4 Install/Upgrade Support
1

Your software
My PHP version is :
My MySQL/MariaDB version is (delete as applicable): MySQL/MariaDB version

Updating/Installing Errors
I am (delete as applicable): Installing / Updating
Upgrading/installing via (delete as applicable) : Web / Command Line

These errors are showing in the installer :

These errors are showing in the Mautic log :

Your problem
My problem is : Why when install Mautic 4 every installation dont work ? Every time 404 error on page when try to connect on. Someone have full instruction that work ?

Steps I have tried to fix the problem :

2

is this a fresh install ?

is it showing a database error on webpage ?

Can you see anything in your logs ? Is the database setup ?