Wordpress site shows ' This site can’t be reached'

Hi, I have problem with my wordpress site. Here is the error log in mysql

iving 0 client threads a chance to die gracefully 2019-03-12T09:10:26.069886Z 0 [Note] Shutting down slave threads 2019-03-12T09:10:26.069890Z 0 [Note] Forcefully disconnecting 0 remaining clients 2019-03-12T09:10:26.069895Z 0 [Note] Event Scheduler: Purging the queue. 0 events 2019-03-12T09:10:26.071079Z 0 [Note] Binlog end 2019-03-12T09:10:26.071561Z 0 [Note] Shutting down plugin ‘auth_socket’ 2019-03-12T09:10:26.071571Z 0 [Note] Shutting down plugin ‘ngram’ 2019-03-12T09:10:26.071573Z 0 [Note] Shutting down plugin ‘partition’ 2019-03-12T09:10:26.071576Z 0 [Note] Shutting down plugin ‘BLACKHOLE’ 2019-03-12T09:10:26.071579Z 0 [Note] Shutting down plugin ‘ARCHIVE’ 2019-03-12T09:10:26.071581Z 0 [Note] Shutting down plugin ‘PERFORMANCE_SCHEMA’ 2019-03-12T09:10:26.071609Z 0 [Note] Shutting down plugin ‘MRG_MYISAM’ 2019-03-12T09:10:26.071611Z 0 [Note] Shutting down plugin ‘MyISAM’ 2019-03-12T09:10:26.071639Z 0 [Note] Shutting down plugin ‘INNODB_SYS_VIRTUAL’ 2019-03-12T09:10:26.071643Z 0 [Note] Shutting down plugin ‘INNODB_SYS_DATAFILES’ 2019-03-12T09:10:26.071646Z 0 [Note] Shutting down plugin ‘INNODB_SYS_TABLESPACES’ 2019-03-12T09:10:26.071649Z 0 [Note] Shutting down plugin ‘INNODB_SYS_FOREIGN_COLS’ 2019-03-12T09:10:26.071653Z 0 [Note] Shutting down plugin ‘INNODB_SYS_FOREIGN’ 2019-03-12T09:10:26.071655Z 0 [Note] Shutting down plugin ‘INNODB_SYS_FIELDS’ 2019-03-12T09:10:26.071659Z 0 [Note] Shutting down plugin ‘INNODB_SYS_COLUMNS’ 2019-03-12T09:10:26.071661Z 0 [Note] Shutting down plugin ‘INNODB_SYS_INDEXES’ 2019-03-12T09:10:26.071664Z 0 [Note] Shutting down plugin ‘INNODB_SYS_TABLESTATS’ 2019-03-12T09:10:26.071667Z 0 [Note] Shutting down plugin ‘INNODB_SYS_TABLES’ 2019-03-12T09:10:26.071670Z 0 [Note] Shutting down plugin ‘INNODB_FT_INDEX_TABLE’ 2019-03-12T09:10:26.071673Z 0 [Note] Shutting down plugin ‘INNODB_FT_INDEX_CACHE’ 2019-03-12T09:10:26.071676Z 0 [Note] Shutting down plugin ‘INNODB_FT_CONFIG’ 2019-03-12T09:10:26.071679Z 0 [Note] Shutting down plugin ‘INNODB_FT_BEING_DELETED’ 2019-03-12T09:10:26.071682Z 0 [Note] Shutting down plugin ‘INNODB_FT_DELETED’ 2019-03-12T09:10:26.071685Z 0 [Note] Shutting down plugin ‘INNODB_FT_DEFAULT_STOPWORD’ 2019-03-12T09:10:26.071688Z 0 [Note] Shutting down plugin ‘INNODB_METRICS’ 2019-03-12T09:10:26.071691Z 0 [Note] Shutting down plugin ‘INNODB_TEMP_TABLE_INFO’ 2019-03-12T09:10:26.071694Z 0 [Note] Shutting down plugin ‘INNODB_BUFFER_POOL_STATS’ 2019-03-12T09:10:26.071697Z 0 [Note] Shutting down plugin ‘INNODB_BUFFER_PAGE_LRU’ 2019-03-12T09:10:26.071700Z 0 [Note] Shutting down plugin ‘INNODB_BUFFER_PAGE’ 2019-03-12T09:10:26.071703Z 0 [Note] Shutting down plugin ‘INNODB_CMP_PER_INDEX_RESET’ 2019-03-12T09:10:26.071706Z 0 [Note] Shutting down plugin ‘INNODB_CMP_PER_INDEX’ 2019-03-12T09:10:26.071708Z 0 [Note] Shutting down plugin ‘INNODB_CMPMEM_RESET’ 2019-03-12T09:10:26.071710Z 0 [Note] Shutting down plugin ‘INNODB_CMPMEM’ 2019-03-12T09:10:26.071712Z 0 [Note] Shutting down plugin ‘INNODB_CMP_RESET’ 2019-03-12T09:10:26.071714Z 0 [Note] Shutting down plugin ‘INNODB_CMP’ 2019-03-12T09:10:26.071716Z 0 [Note] Shutting down plugin ‘INNODB_LOCK_WAITS’ 2019-03-12T09:10:26.071718Z 0 [Note] Shutting down plugin ‘INNODB_LOCKS’ 2019-03-12T09:10:26.071720Z 0 [Note] Shutting down plugin ‘INNODB_TRX’ 2019-03-12T09:10:26.071722Z 0 [Note] Shutting down plugin ‘InnoDB’ 2019-03-12T09:10:26.071771Z 0 [Note] InnoDB: FTS optimize thread exiting. 2019-03-12T09:10:26.071972Z 0 [Note] InnoDB: Starting shutdown… 2019-03-12T09:10:26.172401Z 0 [Note] InnoDB: Dumping buffer pool(s) to /var/lib/mysql/ib_buffer_pool 2019-03-12T09:10:26.172655Z 0 [Note] InnoDB: Buffer pool(s) dump completed at 190312 9:10:26 2019-03-12T09:10:27.583112Z 0 [Note] InnoDB: Shutdown completed; log sequence number 148426088 2019-03-12T09:10:27.584285Z 0 [Note] InnoDB: Removed temporary tablespace data file: “ibtmp1” 2019-03-12T09:10:27.584300Z 0 [Note] Shutting down plugin ‘MEMORY’ 2019-03-12T09:10:27.584304Z 0 [Note] Shutting down plugin ‘CSV’ 2019-03-12T09:10:27.584308Z 0 [Note] Shutting down plugin ‘sha256_password’ 2019-03-12T09:10:27.584319Z 0 [Note] Shutting down plugin ‘mysql_native_password’ 2019-03-12T09:10:27.584484Z 0 [Note] Shutting down plugin ‘binlog’ 2019-03-12T09:10:27.584728Z 0 [Note] /usr/sbin/mysqld: Shutdown complete

2019-03-12T09:10:27.874594Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2019-03-12T09:10:27.876377Z 0 [Note] /usr/sbin/mysqld (mysqld 5.7.25-0ubuntu0.18.04.2) starting as process 20954 … 2019-03-12T09:10:27.880278Z 0 [Note] InnoDB: PUNCH HOLE support available 2019-03-12T09:10:27.880302Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2019-03-12T09:10:27.880305Z 0 [Note] InnoDB: Uses event mutexes 2019-03-12T09:10:27.880308Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier 2019-03-12T09:10:27.880312Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2019-03-12T09:10:27.880315Z 0 [Note] InnoDB: Using Linux native AIO 2019-03-12T09:10:27.880540Z 0 [Note] InnoDB: Number of pools

Can you help me? I have done a few steps to settle this problem but it does not seem to work. My site show ‘this page can’t be reach’

Thank You