Yesterday I had a hot day, I inexperience dropped your site several times, several times I wanted to reinstall the system from scratch, but still coped with all the problems without reinstallation, it works! But at a time when lying is the website, I rush to find the exit I tried to install what is already installed. For example, several times used the command:
apt-get install php7.2
apt install php7.2-mysql
Tell me, what is the consequence of the installation installed things?