(In reply to comment #0)

2 PHP Strict Standards: Only variables should be passed by reference in
/www/translatewiki.net/w/extensions/LiquidThreads/api/ApiQueryLQTThreads.php on
line 166

function __construct( &$output, &$article, &$title, &$user, &$request ) {

$view = new LqtView( $out, $article, $title, $this->getUser(), $this->getRequest() );

I'm guessing it doesn't like the getUser/getRequest calls like that...

https://gerrit.wikimedia.org/r/25842