Error message

• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 515 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 538 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\HandlerBase->getJoin() (line 685 of core/modules/views/src/Plugin/views/HandlerBase.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 515 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 538 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\HandlerBase->getJoin() (line 685 of core/modules/views/src/Plugin/views/HandlerBase.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\HandlerBase->getJoin() (line 685 of core/modules/views/src/Plugin/views/HandlerBase.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 515 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 538 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 515 of core/modules/views/src/Plugin/views/query/Sql.php).
• Deprecated function: Using null as an array offset is deprecated, use an empty string instead in Drupal\views\Plugin\views\query\Sql->queueTable() (line 538 of core/modules/views/src/Plugin/views/query/Sql.php).