There is a display issue:
and a php stacktrace:
/srv/mediawiki/php-1.30.0-wmf.2/includes/widget/search/InterwikiSearchResultSetWidget.php:180 PHP Notice: Undefined index: port #0 /srv/mediawiki/php-1.30.0-wmf.2/includes/widget/search/InterwikiSearchResultSetWidget.php(180): MWExceptionHandler::handleError(integer, string, string, integer, array, array) #1 /srv/mediawiki/php-1.30.0-wmf.2/includes/widget/search/InterwikiSearchResultSetWidget.php(145): MediaWiki\Widget\Search\InterwikiSearchResultSetWidget->iwIcon(string) #2 /srv/mediawiki/php-1.30.0-wmf.2/includes/widget/search/InterwikiSearchResultSetWidget.php(89): MediaWiki\Widget\Search\InterwikiSearchResultSetWidget->footerHtml(string, string) #3 /srv/mediawiki/php-1.30.0-wmf.2/includes/widget/search/BasicSearchResultSetWidget.php(93): MediaWiki\Widget\Search\InterwikiSearchResultSetWidget->render(string, array) #4 /srv/mediawiki/php-1.30.0-wmf.2/includes/specials/SpecialSearch.php(425): MediaWiki\Widget\Search\BasicSearchResultSetWidget->render(string, integer, NULL, CirrusSearch\Search\ResultSet) #5 /srv/mediawiki/php-1.30.0-wmf.2/includes/specials/SpecialSearch.php(185): SpecialSearch->showResults(string) #6 /srv/mediawiki/php-1.30.0-wmf.2/includes/specialpage/SpecialPage.php(522): SpecialSearch->execute(NULL) #7 /srv/mediawiki/php-1.30.0-wmf.2/includes/specialpage/SpecialPageFactory.php(578): SpecialPage->run(NULL) #8 /srv/mediawiki/php-1.30.0-wmf.2/includes/MediaWiki.php(287): SpecialPageFactory::executePath(Title, RequestContext) #9 /srv/mediawiki/php-1.30.0-wmf.2/includes/MediaWiki.php(862): MediaWiki->performRequest() #10 /srv/mediawiki/php-1.30.0-wmf.2/includes/MediaWiki.php(523): MediaWiki->main() #11 /srv/mediawiki/php-1.30.0-wmf.2/index.php(43): MediaWiki->run() #12 /srv/mediawiki/w/index.php(3): include(string) #13 {main}