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here is the mysql log file:---------------------windows 10 ... xampp v3.2.2

2018-07-09 11:53:07 2238 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2018-07-09 11:53:07 8760 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.

2018-07-09 11:53:07 8760 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2018-07-09 11:53:07 8760 [Note] InnoDB: The InnoDB memory heap is disabled
2018-07-09 11:53:07 8760 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2018-07-09 11:53:07 8760 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier
2018-07-09 11:53:07 8760 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-07-09 11:53:07 8760 [Note] InnoDB: Using generic crc32 instructions
2018-07-09 11:53:07 8760 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2018-07-09 11:53:07 8760 [Note] InnoDB: Completed initialization of buffer pool
2018-07-09 11:53:07 8760 [Note] InnoDB: The first specified data file C:\xampp\mysql\data\ibdata1 did not exist: a new database to be created!
2018-07-09 11:53:07 8760 [Note] InnoDB: Setting file C:\xampp\mysql\data\ibdata1 size to 10 MB
2018-07-09 11:53:07 8760 [Note] InnoDB: Setting log file C:\xampp\mysql\data\ib_logfile101 size to 5 MB
2018-07-09 11:53:07 8760 [Note] InnoDB: Setting log file C:\xampp\mysql\data\ib_logfile1 size to 5 MB
2018-07-09 11:53:07 8760 [Note] InnoDB: Renaming log file C:\xampp\mysql\data\ib_logfile101 to C:\xampp\mysql\data\ib_logfile0
2018-07-09 11:53:07 8760 [Warning] InnoDB: New log files created, LSN=45781
2018-07-09 11:53:07 8760 [Note] InnoDB: Doublewrite buffer not found: creating new
2018-07-09 11:53:08 8760 [Note] InnoDB: Doublewrite buffer created
2018-07-09 11:53:08 8760 [Note] InnoDB: 128 rollback segment(s) are active.
2018-07-09 11:53:08 8760 [Warning] InnoDB: Creating foreign key constraint system tables.
2018-07-09 11:53:08 8760 [Note] InnoDB: Foreign key constraint system tables created
2018-07-09 11:53:08 8760 [Note] InnoDB: Creating tablespace and datafile system tables.
2018-07-09 11:53:08 8760 [Note] InnoDB: Tablespace and datafile system tables created.
2018-07-09 11:53:08 8760 [Note] InnoDB: Waiting for purge to start
2018-07-09 11:53:08 8760 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.38-83.0 started; log sequence number 0
2018-07-09 11:53:08 8348 [Note] InnoDB: Dumping buffer pool(s) not yet started
2018-07-09 11:53:08 8760 [Note] Plugin 'FEEDBACK' is disabled.
2018-07-09 11:53:08 8760 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
2018-07-09 11:53:08 8760 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
2018-07-09 11:53:08 8760 [Note] Server socket created on IP: '::'.
2018-07-09 11:53:08 8760 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2018-07-09 11:53:38 1b64 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2018-07-09 11:53:38 7012 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.

2018-07-09 11:53:38 7012 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2018-07-09 11:53:38 7012 [Note] InnoDB: The InnoDB memory heap is disabled
2018-07-09 11:53:38 7012 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2018-07-09 11:53:38 7012 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier
2018-07-09 11:53:38 7012 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-07-09 11:53:38 7012 [Note] InnoDB: Using generic crc32 instructions
2018-07-09 11:53:38 7012 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2018-07-09 11:53:38 7012 [Note] InnoDB: Completed initialization of buffer pool
2018-07-09 11:53:38 7012 [Note] InnoDB: Highest supported file format is Barracuda.
2018-07-09 11:53:38 7012 [Note] InnoDB: The log sequence number 0 in ibdata file do not match the log sequence number 1600614 in the ib_logfiles!
2018-07-09 11:53:38 7012 [Note] InnoDB: Restoring possible half-written data pages from the doublewrite buffer...
2018-07-09 11:53:38 7012 [Note] InnoDB: 128 rollback segment(s) are active.
2018-07-09 11:53:38 7012 [Note] InnoDB: Waiting for purge to start
2018-07-09 11:53:38 7012 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.38-83.0 started; log sequence number 1600614
2018-07-09 11:53:38 7884 [Note] InnoDB: Dumping buffer pool(s) not yet started
2018-07-09 11:53:38 7012 [Note] Plugin 'FEEDBACK' is disabled.
2018-07-09 11:53:38 7012 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
2018-07-09 11:53:38 7012 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
2018-07-09 11:53:38 7012 [Note] Server socket created on IP: '::'.
2018-07-09 11:53:38 7012 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2018-07-09 11:55:11 1b4c InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2018-07-09 11:55:11 6988 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.

2018-07-09 11:55:11 6988 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2018-07-09 11:55:11 6988 [Note] InnoDB: The InnoDB memory heap is disabled
2018-07-09 11:55:11 6988 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2018-07-09 11:55:11 6988 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier
2018-07-09 11:55:11 6988 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-07-09 11:55:11 6988 [Note] InnoDB: Using generic crc32 instructions
2018-07-09 11:55:11 6988 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2018-07-09 11:55:11 6988 [Note] InnoDB: Completed initialization of buffer pool
2018-07-09 11:55:11 6988 [Note] InnoDB: Highest supported file format is Barracuda.
2018-07-09 11:55:11 6988 [Note] InnoDB: The log sequence number 0 in ibdata file do not match the log sequence number 1600624 in the ib_logfiles!
2018-07-09 11:55:11 6988 [Note] InnoDB: Restoring possible half-written data pages from the doublewrite buffer...
2018-07-09 11:55:12 6988 [Note] InnoDB: 128 rollback segment(s) are active.
2018-07-09 11:55:12 6988 [Note] InnoDB: Waiting for purge to start
2018-07-09 11:55:12 6988 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.38-83.0 started; log sequence number 1600624
2018-07-09 11:55:12 2212 [Note] InnoDB: Dumping buffer pool(s) not yet started
2018-07-09 11:55:12 6988 [Note] Plugin 'FEEDBACK' is disabled.
2018-07-09 11:55:12 6988 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
2018-07-09 11:55:12 6988 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
2018-07-09 11:55:12 6988 [Note] Server socket created on IP: '::'.
2018-07-09 11:55:12 6988 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2018-07-09 11:55:28 1f00 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2018-07-09 11:55:28 7936 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.

2018-07-09 11:55:28 7936 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2018-07-09 11:55:28 7936 [Note] InnoDB: The InnoDB memory heap is disabled
2018-07-09 11:55:28 7936 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2018-07-09 11:55:28 7936 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier
2018-07-09 11:55:28 7936 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-07-09 11:55:28 7936 [Note] InnoDB: Using generic crc32 instructions
2018-07-09 11:55:28 7936 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2018-07-09 11:55:28 7936 [Note] InnoDB: Completed initialization of buffer pool
2018-07-09 11:55:28 7936 [Note] InnoDB: Highest supported file format is Barracuda.
2018-07-09 11:55:28 7936 [Note] InnoDB: The log sequence number 0 in ibdata file do not match the log sequence number 1600634 in the ib_logfiles!
2018-07-09 11:55:28 7936 [Note] InnoDB: Restoring possible half-written data pages from the doublewrite buffer...
2018-07-09 11:55:28 7936 [Note] InnoDB: 128 rollback segment(s) are active.
2018-07-09 11:55:28 7936 [Note] InnoDB: Waiting for purge to start
2018-07-09 11:55:28 7936 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.38-83.0 started; log sequence number 1600634
2018-07-09 11:55:28 7140 [Note] InnoDB: Dumping buffer pool(s) not yet started
2018-07-09 11:55:29 7936 [Note] Plugin 'FEEDBACK' is disabled.
2018-07-09 11:55:29 7936 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
2018-07-09 11:55:29 7936 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
2018-07-09 11:55:29 7936 [Note] Server socket created on IP: '::'.
2018-07-09 11:55:29 7936 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
2018-07-09 12:01:48 18c0 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
2018-07-09 12:01:48 6336 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use backoff, increase buffer pool at least up to 20MB.

2018-07-09 12:01:48 6336 [Note] InnoDB: Using mutexes to ref count buffer pool pages
2018-07-09 12:01:48 6336 [Note] InnoDB: The InnoDB memory heap is disabled
2018-07-09 12:01:48 6336 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
2018-07-09 12:01:48 6336 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier
2018-07-09 12:01:48 6336 [Note] InnoDB: Compressed tables use zlib 1.2.3
2018-07-09 12:01:48 6336 [Note] InnoDB: Using generic crc32 instructions
2018-07-09 12:01:48 6336 [Note] InnoDB: Initializing buffer pool, size = 16.0M
2018-07-09 12:01:48 6336 [Note] InnoDB: Completed initialization of buffer pool
2018-07-09 12:01:48 6336 [Note] InnoDB: Highest supported file format is Barracuda.
2018-07-09 12:01:48 6336 [Note] InnoDB: The log sequence number 0 in ibdata file do not match the log sequence number 1600644 in the ib_logfiles!
2018-07-09 12:01:48 6336 [Note] InnoDB: Restoring possible half-written data pages from the doublewrite buffer...
2018-07-09 12:01:48 6336 [Note] InnoDB: 128 rollback segment(s) are active.
2018-07-09 12:01:48 6336 [Note] InnoDB: Waiting for purge to start
2018-07-09 12:01:48 6336 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.38-83.0 started; log sequence number 1600644
2018-07-09 12:01:48 6212 [Note] InnoDB: Dumping buffer pool(s) not yet started
2018-07-09 12:01:48 6336 [Note] Plugin 'FEEDBACK' is disabled.
2018-07-09 12:01:48 6336 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
2018-07-09 12:01:48 6336 [ERROR] Can't open and lock privilege tables: Table 'mysql.servers' doesn't exist
2018-07-09 12:01:48 6336 [Note] Server socket created on IP: '::'.
2018-07-09 12:01:48 6336 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist