There was a problem connecting to the database.
To prevent somebody from hacking your website, we now
require you to complete a stricter authentication
process. You must create a text file called
login.txt in the gallery2 directory on your
webserver (that's the same directory where main.php is
located) and put specific text in it. If you used the preinstaller
to install Gallery, then you may have to use it again to set your directory
permissions so that you can create the login.txt file.