Fatal error: Uncaught Error: Call to a member function getPossibleValuesType() on null in /var/www/progruppen.net/probygningsautomatik/wp-content/plugins/wpdatatables/source/class.wpdatatable.php:820 Stack trace: #0 /var/www/progruppen.net/probygningsautomatik/wp-content/plugins/wpdatatables/source/class.wpdatatable.php(960): WPDataTable->createColumnsFromArr(Array, Array, Array) #1 /var/www/progruppen.net/probygningsautomatik/wp-content/plugins/wpdatatables/source/class.wpdatatable.php(2399): WPDataTable->arrayBasedConstruct(Array, Array) #2 /var/www/progruppen.net/probygningsautomatik/wp-content/plugins/wpdatatables/controllers/wdt_functions.php(414): WPDataTable->fillFromData(Object(stdClass), Array) #3 /var/www/progruppen.net/probygningsautomatik/wp-includes/shortcodes.php(343): wdtWpDataTableShortcodeHandler(Array, '', 'wpdatatable') #4 [internal function]: do_shortcode_tag(Array) #5 /var/www/progruppen.net/probygningsautomatik/wp-includes/shortcodes.php(218): preg_replace_callback('/\\[(\\[?)(wpdata...', 'do_shortco in /var/www/progruppen.net/probygningsautomatik/wp-content/plugins/wpdatatables/source/class.wpdatatable.php on line 820