After drupal 8.5 update the table 'taxonomy_term_hierarchy' has been moved to taxonomy_term__parent. So I have following error when access to the tags overview page (/admin/structure/taxonomy/manage/tags/overview).
Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'drupal.taxonomy_term_hierarchy' doesn't exist: SELECT t.*, h.parent AS parent FROM {taxonomy_term_field_data} t INNER JOIN {taxonomy_term_hierarchy} h ON h.tid = t.tid WHERE (t.vid = :db_condition_placeholder_0) AND (t.default_langcode = :db_condition_placeholder_1) ORDER BY t.weight ASC, t.name ASC; Array ( [:db_condition_placeholder_0] => tags [:db_condition_placeholder_1] => 1 ) in Drupal\taxonomy\TermStorage->loadTree() (line 214 of /var/www/drupal/drupal8/core/modules/taxonomy/src/TermStorage.php).