Warning: compact(): Undefined variable $groupby in /customers/4/f/2/jarnhed.com/httpd.www/wp-includes/class-wp-site-query.php on line 538

Fatal error: Uncaught Error: Call to undefined function create_function() in /customers/4/f/2/jarnhed.com/httpd.www/wp-content/plugins/cop-pdf-attachment-menu/cop_pdf_attachment_menu.php:79
Stack trace:
#0 /customers/4/f/2/jarnhed.com/httpd.www/wp-content/plugins/cop-pdf-attachment-menu/cop_pdf_attachment_menu.php(61): cop_pdfmenu->__construct()
#1 /customers/4/f/2/jarnhed.com/httpd.www/wp-settings.php(268): include_once('/customers/4/f/...')
#2 /customers/4/f/2/jarnhed.com/httpd.www/wp-config.php(97): require_once('/customers/4/f/...')
#3 /customers/4/f/2/jarnhed.com/httpd.www/wp-load.php(37): require_once('/customers/4/f/...')
#4 /customers/4/f/2/jarnhed.com/httpd.www/wp-blog-header.php(13): require_once('/customers/4/f/...')
#5 /customers/4/f/2/jarnhed.com/httpd.www/index.php(17): require('/customers/4/f/...')
#6 {main}
  thrown in /customers/4/f/2/jarnhed.com/httpd.www/wp-content/plugins/cop-pdf-attachment-menu/cop_pdf_attachment_menu.php on line 79