Looks like it's a parser error with the backticks. Maybe post a bug report for Visual Studio Code or whatever the PHP plugin for syntax highlighting is
The easiest way would be to create a hidden field with the airline ID you want. Right now, there aren't custom registration fields, probably something I can add in after release
Looks like the latest install there worked. Sorry about the issues. You can try the latest dev, there's a fully packaged version at the link below. There's a lot of fixes, in the installer too:
http://downloads.phpvms.net/phpvms-7.0.0-dev.tar.gz
I have to make that configurable, as to what the default page will be. However, right now news is a widget right now, which can be added onto any page as:
{{ Widget::latestNews(['count' => 1]) }}
It should be. It looks like you're on a Mac. That hides dotfiles by default, you need to change that setting - http://docs.phpvms.net/setup/installation
I think you need to contact your host, the message " Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) in /home/sunflyvi/public_html/core/classes/ezdb/ezdb_mysqli.class.php on line 101" does not look like it can be fixed by someone other than your host
htaccess support is required, a lot of hosts (free or not) don't seem to have that configured properly. Along with some PHP extensions (bcmath, particularly) that are unavoidable to be required