Notice: Trying to access array offset on value of type null in Drupal\views\Plugin\views\display\PathPluginBase->isDefaultTabPath() (line 104 of core/modules/views/src/Plugin/views/display/PathPluginBase.php).
Notice: Trying to access array offset on value of type int in Drupal\Core\Render\Element::children() (line 81 of core/lib/Drupal/Core/Render/Element.php).
Notice: Trying to access array offset on value of type int in Drupal\Core\Render\Element::children() (line 81 of core/lib/Drupal/Core/Render/Element.php).