Error.log var/log/ngnix

2017/09/08 11:29:43 [error] 1168#0: *1089 FastCGI sent in stderr: "PHP message: WordPress database error Got error 28 from storage engine for query SHOW FULL COLUMNS FROM `wp_options` made by require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('plugins_loaded'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, RevSliderFront::createDBTables, update_option, W3TC\DbCache_Wpdb->update, W3TC\DbCache_WpdbInjection_QueryCaching->update, W3TC\_CallUnderlying->update, W3TC\DbCache_Wpdb->update, W3TC\DbCache_WpdbInjection->update, W3TC\DbCache_Wpdb->default_update, W3TC\DbCache_Wpdb->query, W3TC\DbCache_WpdbInjection->query, W3TC\DbCache_Wpdb->default_query
PHP message: Erreur de la base de données WordPress Got error 28 from storage engine pour la requête SHOW FULL COLUMNS FROM `wp_options` faite par require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, wp_cron, spawn_cron, set_transient, update_option, W3TC\DbCache_Wpdb->update, W3TC\DbCache_WpdbInjection_QueryCaching->update, W3TC\_CallUnderlying->update, W3TC\DbCache_Wpdb->update, W3TC\DbCache_WpdbInjection->update, W3TC\DbCache_Wpdb->default_update, W3TC\DbCache_Wpdb->query, W3TC\DbCache_WpdbInjection->query, W3TC\DbCache_Wpdb->default_query
PHP message: PHP Warning:  mysqli_query(): (HY000/1030): Got error 28 from storage engine in /var/www/clients1/eden-pack/wp-includes/wp-db.php on line 1877
PHP message: Erreur de la base de données WordPress Got error 28 from storage engine pour la requête SELECT  DISTINCT t.*, tt.*, tr.object_id FROM wp_terms AS t  INNER JOIN wp_term_taxonomy AS tt ON t.term_id = tt.term_id INNER JOIN wp_term_relationships AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id LEFT JOIN wp_termmeta AS tm ON (t.term_id = tm.term_id AND tm.meta_key = 'order')  WHERE tt.taxonomy IN ('product_type',
2017/09/08 11:29:43 [error] 1168#0: *1089 FastCGI sent in stderr: " FROM `wp_options` faite par require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/accesspress-store/woocommerce/single-product.php'), wc_get_template_part, load_template, require('/themes/accesspress-store/woocommerce/content-single-product.php'), do_action('woocommerce_after_single_product_summary'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, woocommerce_output_related_products, woocommerce_related_products, wc_get_template, include('/themes/accesspress-store/woocommerce/single-product/related.php'), WC_Product->get_related, get_transient, delete_option, W3TC\DbCache_Wpdb->delete, W3TC\DbCache_WpdbInjection_QueryCaching->delete, W3TC\_CallUnderlying->delete, W3TC\DbCache_Wpdb->delete, W3TC\DbCache_WpdbInjection->delete, W3TC\DbCache_Wpdb->default_delete, W3TC\DbCache_Wpdb->query, W3TC\DbCache_WpdbInjection->query, W3TC\D...
PHP message: Erreur de la base de données WordPress Got error 28 from storage engine pour la requête SHOW FULL COLUMNS FROM `wp_options` faite par require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/accesspress-store/woocommerce/single-product.php'), wc_get_template_part, load_template, require('/themes/accesspress-store/woocommerce/content-single-product.php'), do_action('woocommerce_after_single_product_summary'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, woocommerce_output_related_products, woocommerce_related_products, wc_get_template, include('/themes/accesspress-store/woocommerce/single-product/related.php'), WC_Product->get_related, get_transient, delete_option, W3TC\DbCache_Wpdb->delete, W3TC\DbCache_WpdbInjection_QueryCaching->delete, W3TC\_CallUnderlying->delete, W3TC\DbCache_Wpdb->delete, W3TC\DbCache_WpdbInjection->delete, W3TC\DbCache_Wpdb->default_delete, W3TC\DbCache_Wpdb->query, W3TC\DbCache_WpdbInjection->query, W3TC\D...
PHP message: PHP Warning:  mysqli_query(): (HY000/