Fatal error: Uncaught RedisException: read error on connection to redis:6379 in /var/www/html/wp-content/plugins/w3-total-cache/Cache_Redis.php:170 Stack trace: #0 /var/www/html/wp-content/plugins/w3-total-cache/Cache_Redis.php(170): Redis->get('w3tc_655412948_...') #1 /var/www/html/wp-content/plugins/w3-total-cache/Cache_Base.php(114): W3TC\Cache_Redis->get_with_old('0optionswpvivid...', 'options') #2 /var/www/html/wp-content/plugins/w3-total-cache/ObjectCache_WpObjectCache_Regular.php(214): W3TC\Cache_Base->get('0optionswpvivid...', 'options') #3 /var/www/html/wp-content/plugins/w3-total-cache/ObjectCache_WpObjectCache.php(104): W3TC\ObjectCache_WpObjectCache_Regular->get('wpvivid_dashboa...', 'options', false, NULL) #4 /var/www/html/wp-content/object-cache.php(134): W3TC\ObjectCache_WpObjectCache->get('wpvivid_dashboa...', 'options', false, NULL) #5 /var/www/html/wp-includes/option.php(202): wp_cache_get('wpvivid_dashboa...', 'options') #6 /var/www/html/wp-content/plugins/wpvivid-backup-pro/includes/class-wpvivid-updater.php(73): get_option('wpvivid_dashboa...', Array) #7 /var/www/html/wp-content/plugins/wpvivid-backup-pro/includes/class-wpvivid-updater.php(18): WPvivid_Updater->need_update() #8 /var/www/html/wp-content/plugins/wpvivid-backup-pro/includes/class-wpvivid-backup-pro.php(784): WPvivid_Updater->__construct() #9 /var/www/html/wp-content/plugins/wpvivid-backup-pro/includes/class-wpvivid-backup-pro.php(24): WPvivid_backup_pro->load_dependencies() #10 /var/www/html/wp-content/plugins/wpvivid-backup-pro/wpvivid-backup-pro.php(105): WPvivid_backup_pro->__construct() #11 /var/www/html/wp-content/plugins/wpvivid-backup-pro/wpvivid-backup-pro.php(108): run_wpvivid_backup_pro() #12 /var/www/html/wp-settings.php(560): include_once('/var/www/html/w...') #13 /var/www/html/wp-config.php(136): require_once('/var/www/html/w...') #14 /var/www/html/wp-load.php(50): require_once('/var/www/html/w...') #15 /var/www/html/wp-blog-header.php(13): require_once('/var/www/html/w...') #16 /var/www/html/index.php(17): require('/var/www/html/w...') #17 {main} thrown in /var/www/html/wp-content/plugins/w3-total-cache/Cache_Redis.php on line 170 Fatal error: Uncaught RedisException: Redis server redis:6379 went away in /var/www/html/wp-content/plugins/w3-total-cache/Cache_Redis.php:170 Stack trace: #0 /var/www/html/wp-content/plugins/w3-total-cache/Cache_Redis.php(170): Redis->get('w3tc_655412948_...') #1 /var/www/html/wp-content/plugins/w3-total-cache/Cache_Base.php(114): W3TC\Cache_Redis->get_with_old('e680822d20812e5...', 'options') #2 /var/www/html/wp-content/plugins/w3-total-cache/DbCache_WpdbInjection_QueryCaching.php(195): W3TC\Cache_Base->get('e680822d20812e5...', 'options') #3 /var/www/html/wp-content/plugins/w3-total-cache/DbCache_WpdbNew.php(216): W3TC\DbCache_WpdbInjection_QueryCaching->query('SELECT autoload...') #4 /var/www/html/wp-includes/class-wpdb.php(3075): W3TC\DbCache_WpdbNew->query('SELECT autoload...') #5 /var/www/html/wp-includes/option.php(1216): wpdb->get_row('SELECT autoload...') #6 /var/www/html/wp-content/plugins/seo-by-rank-math/includes/admin/notifications/class-notification-center.php(172): delete_option('rank_math_notif...') #7 /var/www/html/wp-includes/class-wp-hook.php(341): RankMath\Admin\Notifications\Notification_Center->update_storage('') #8 /var/www/html/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array) #9 /var/www/html/wp-includes/plugin.php(522): WP_Hook->do_action(Array) #10 /var/www/html/wp-includes/load.php(1308): do_action('shutdown') #11 [internal function]: shutdown_action_hook() #12 {main} thrown in /var/www/html/wp-content/plugins/w3-total-cache/Cache_Redis.php on line 170