Fatal error: Uncaught Error: Call to a member function fetchAll() on bool in /var/www/record_admin_prod/app/RecordProject/Artist.php:417 Stack trace: #0 /var/www/record_admin_prod/wordpress2018/wp-content/plugins/RecordProject/ArtistList.php(97): RecordProject\Artist::getArtistsByInitial('a', Array) #1 /var/www/record_admin_prod/wordpress2018/wp-content/plugins/RecordProject/ArtistList.php(126): {closure}('a', 1) #2 /var/www/record_admin_prod/wordpress2018/wp-content/plugins/RecordProject/ArtistList.php(140): {closure}('a', 1) #3 /var/www/record_admin_prod/wordpress2018/wp-includes/class-wp-hook.php(286): createVirtualArtistListPage('') #4 /var/www/record_admin_prod/wordpress2018/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #5 /var/www/record_admin_prod/wordpress2018/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #6 /var/www/record_admin_prod/wordpress2018/wp-settings.php(505): do_action('init') #7 /var/www/record_admin_prod/wordpress2018/wp-config.php(99): require_once('/var/www/record. in /var/www/record_admin_prod/app/RecordProject/Artist.php on line 417