ErrorException in /var/www/htdocs/wp-content/themes/fgw/src/pug/page.pug:
Undefined array key "sort" on line 12, offset 25
        .container
            unless (is_front_page() || is_home())
                include gutenberg/hero/single-post-hero/block.pug
            .row 
                .col-lg-12
                    while have_posts()
                        - the_post()
                        - the_content()
## /var/www/htdocs/wp-content/plugins/uva-publicathek/inc/pub-filter.php(53)
#0 /var/www/htdocs/wp-content/plugins/uva-publicathek/inc/pub-filter.php(53): Phug\Util\SandBox->Phug\Util\{closure}()
#1 /var/www/htdocs/wp-includes/class-wp-hook.php(310): do_uva_pub_filter_order()
#2 /var/www/htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#3 /var/www/htdocs/wp-content/plugins/uva-publicathek/inc/pub-functions.php(214): apply_filters()
#4 /var/www/htdocs/wp-content/plugins/uva-publicathek/inc/pub-shortcodes.php(38): uva_pub_filter()
#5 /var/www/htdocs/wp-includes/shortcodes.php(433): uva_pub_filter_sc()
#6 [internal function]: do_shortcode_tag()
#7 /var/www/htdocs/wp-includes/shortcodes.php(273): preg_replace_callback()
#8 /var/www/htdocs/wp-includes/class-wp-hook.php(310): do_shortcode()
#9 /var/www/htdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#10 /var/www/htdocs/wp-includes/post-template.php(256): apply_filters()
#11 /var/www/htdocs/wp-content/themes/fgw/cache/pug/0oekXQ73uffxvVH47_WnHjFPDafBQ4ZJHodYu3uG9O0.php(1340): the_content()
#12 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Adapter/FileAdapter.php(100): include('...')
#13 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/AbstractAdapter.php(103): Phug\Renderer\Adapter\FileAdapter->Phug\Renderer\Adapter\{closure}()
#14 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Adapter/FileAdapter.php(98): Phug\Renderer\AbstractAdapter->execute()
#15 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Partial/AdapterTrait.php(145): Phug\Renderer\Adapter\FileAdapter->displayCached()
#16 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Util/Util/SandBox.php(38): Phug\Renderer->Phug\Renderer\Partial\{closure}()
#17 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Partial/AdapterTrait.php(117): Phug\Util\SandBox->__construct()
#18 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/AbstractAdapter.php(61): Phug\Renderer->getNewSandBox()
#19 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Partial/AdapterTrait.php(150): Phug\Renderer\AbstractAdapter->captureBuffer()
#20 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Util/Util/SandBox.php(38): Phug\Renderer->Phug\Renderer\Partial\{closure}()
#21 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Partial/AdapterTrait.php(117): Phug\Util\SandBox->__construct()
#22 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Partial/AdapterTrait.php(159): Phug\Renderer->getNewSandBox()
#23 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer/Partial/AdapterTrait.php(225): Phug\Renderer->getSandboxCall()
#24 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/phug/phug/src/Phug/Renderer/Renderer.php(136): Phug\Renderer->callAdapter()
#25 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/pug-php/pug/src/Pug/Engine/Renderer.php(35): Phug\Renderer->renderFile()
#26 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/pug-php/pug/src/Pug/Engine/Renderer.php(109): Pug\Engine\Renderer->renderFileWithPhp()
#27 [internal function]: Pug\Engine\Renderer->Pug\Engine\{closure}()
#28 /var/www/htdocs/wp-content/themes/fgw/libs/vendor/pug-php/pug/src/Pug/Engine/Renderer.php(116): call_user_func()
#29 /var/www/htdocs/wp-content/themes/fgw/core/Templater.php(59): Pug\Engine\Renderer->renderFile()
#30 /var/www/htdocs/wp-content/themes/fgw/core/Templater.php(116): KubbixTheme\Templater->page_template()
#31 /var/www/htdocs/wp-content/themes/fgw/index.php(4): KubbixTheme\Templater->render()
#32 /var/www/htdocs/wp-includes/template-loader.php(106): include('...')
#33 /var/www/htdocs/wp-blog-header.php(19): require_once('...')
#34 /var/www/htdocs/index.php(17): require('...')
#35 {main}
$parameters = 
array:30 [
  "ID" => 2526
  "post_author" => "2"
  "post_date" => "2021-10-18 12:06:47"
  "post_date_gmt" => "2021-10-18 12:06:47"
  "post_content" => """
    \n
    <div style="height:30px" aria-hidden="true" class="wp-block-spacer"></div>\n
    \n
    <p><em>Here you will find an overview of the Faculty’s scientific publications.</em></p>\n
    \n
    <div style="height:30px" aria-hidden="true" class="wp-block-spacer"></div>\n
    <form class="uva-pub-filter-form" method="GET"><div class="uva-pub-filter-system hidden" style="display:none;visibility:hidden;"></div><div class="uva-pub-filter uva-pub-filter-search"><input type="text" name="filter[search]" placeholder="Search" value="" /></div><div class="uva-pub-order"><select name="sort"><option value="publication.publication_year desc,publication.publication_month desc,publication.publication_day desc">-</option><option value="publication.title">Title</option><option value="journal.title">Journal</option><option value="publication.publication_year desc,publication.publication_month desc,publication.publication_day desc">Publication date</option></select></div><div class="uva-pub-submit"><button type="submit">Refresh</button></div></form>\n
    \n
    <div style="height:30px" aria-hidden="true" class="wp-block-spacer"></div>\n
    \n
    <div class="publication-list">\n
      <header class="publication-list-header">\n
        <span class="publication-list-header__total">Total entries: </span>\n
        <span class="publication-list-header__pages">Total pages: </span>\n
        <nav class='navigation'><ul><li class='start is-link'><a href='?navpage=1'></a></li>&nbsp;...&nbsp;<li class='end '></li>&nbsp;  </header>\n
    \n
      <div class="publication-list-body">\n
          </div>\n
    \n
      <footer class="publication-list-footer">\n
        <nav class='navigation'><ul><li class='start is-link'><a href='?navpage=1'></a></li>&nbsp;...&nbsp;<li class='end '></li>&nbsp;  </footer>\n
    </div>\n
    \n
    """
  "post_title" => "Publication Database"
  "post_excerpt" => ""
  "post_status" => "publish"
  "comment_status" => "closed"
  "ping_status" => "closed"
  "post_password" => ""
  "post_name" => "publication-database"
  "to_ping" => ""
  "pinged" => ""
  "post_modified" => "2022-03-08 20:08:50"
  "post_modified_gmt" => "2022-03-08 20:08:50"
  "post_content_filtered" => ""
  "post_parent" => 2523
  "guid" => "http://fgw.stage.uva.de/research/data-results/publication-database/"
  "menu_order" => 1
  "post_type" => "page"
  "post_mime_type" => ""
  "comment_count" => "0"
  "filter" => "raw"
  "thumbnail" => "https://www.fgw-brandenburg.de/wp-content/uploads/2021/09/AdobeStock_82906417-1024x683-1.jpeg"
  "thumbnail_caption" => false
  "date" => "Monday, 18.10.2021"
  "breadcrumbs" => "<div class="breadcrumbs"><span><span><a href="/">Start</a></span> -&nbsp;&nbsp; <span><a href="https://www.fgw-brandenburg.de/en/research/">Research</a></span> -&nbsp;&nbsp; <span class="breadcrumb_last" aria-current="page">Data &#038; Results</span></span></div>"
  "author_custom" => array:3 [
    "name" => "UVA Administrator"
    "avatar" => "https://secure.gravatar.com/avatar/a801887b2249601159addb90e18d82c2?s=96&d=mm&r=g"
    "description" => ""
  ]
  "fields" => false
]