In SpecialWikilog.php, line 354 we have $this in a static method:
$fields['wikilog'] = Xml::inputLabelSep(
$this->msg( 'wikilog-form-wikilog' )->text(), 'wikilog', 'wl-wikilog', 40,
str_replace( '_', ' ', $opts->consumeValue( 'wikilog' ) )
);This leads to the following error:
PHP message: PHP Fatal error: Using $this when not in object context in /var/www/withoutvowels/web/w/extensions/Wikilog/SpecialWikilog.php on line 354" while reading response header from upstream, client: 31.210.180.196, server: withoutvowels.org, request: "GET /wiki/Special:Wikilog HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm-withoutvowels.sock:", host: "withoutvowels.org", referrer: "https://withoutvowels.org/wiki/Help:Special:Wikilog"
It is Wikilog identified as 1.3.0 from https://phabricator.wikimedia.org/diffusion/EWLG/repository/master/.