This site has been out for a few days, and just today, December 12, 2019, I had the chance to start "rebuilding" it. It went down due to me being forced to upgrade the PHP, but without a way to also upgrade the database. It was presented as "upgrade" or you will have to start paying extra to keep using the old PHP version.
Because of the way the site "broke" and due to the way I had to "restore" the database, most of the various different language example courses of MooTyper are broken. I will rebuild them as quickly as possible.