I am not so into WordPress and I have the following problem.
Some years ago I create this WordPress site for a humanitarian association of a friend. Then I never administrated it for years.
Today my friend call me and say to me that the WordPress site disappeared
So going on the main page:
it shows the WordPress installation page. I really have no idea about what could happen and what who handle this site can have done.
The only idea is that maybe have done the WordPress version update and something went wrong. I have not a recent backup
What can happen? How can I try to solve this situation and restore the website? Going into the FTP it seems that the file and the theme are here. The only strange thing is that there is the install.php installation script into the admin folder and I am pretty sure to have removed after the installation years ago.