how prevent ubuntu 18.04 LTS remove apache2 on startup?

Today I powered on my computer and in /var/log/apt/history.log I can read

Start-Date: 2020-07-27  09:08:26
Commandline: apt -y purge apache2
Purge: apache2:amd64 (2.4.29-1ubuntu4.13)
End-Date: 2020-07-27  09:08:32

I have phpmyadmin and other things that depends on apache2 , why ubuntu keeps remove apache2 every time I reboot the computer ? I already removed nginx to avoid that apt autoremove removes apache2

also doesn’t work

apt install apache2
apt-mark manual apache2 
apache2 was already set to manually installed.

Responding to myself :

apt-mark manual apache2

seems that helped