some reason slave stopped replication due error

mysql> show slave status \G;

*************************** 1. row ***************************

               Slave_IO_State: Waiting for master to send event

                  Master_Host: 192.168.0.40

                  Master_User: slave_user

                  Master_Port: 3306

                Connect_Retry: 60

              Master_Log_File: mysql-bin.000221

          Read_Master_Log_Pos: 242775

               Relay_Log_File: mysql-relay.000010

                Relay_Log_Pos: 168849715

        Relay_Master_Log_File: mysql-bin.000204

             Slave_IO_Running: Yes

            Slave_SQL_Running: No

              Replicate_Do_DB: 

          Replicate_Ignore_DB: 

           Replicate_Do_Table: 

       Replicate_Ignore_Table: 

      Replicate_Wild_Do_Table: 

  Replicate_Wild_Ignore_Table: 

                   Last_Errno: 1032

                   Last_Error: Could not execute Update_rows_v1 event on table bacula.Media; Can't find record in 'Media', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000204, end_log_pos 168850009

                 Skip_Counter: 0

          Exec_Master_Log_Pos: 385542863

              Relay_Log_Space: 288242036

              Until_Condition: None

               Until_Log_File: 

                Until_Log_Pos: 0

           Master_SSL_Allowed: No

           Master_SSL_CA_File: 

           Master_SSL_CA_Path: 

              Master_SSL_Cert: 

            Master_SSL_Cipher: 

               Master_SSL_Key: 

        Seconds_Behind_Master: NULL

Master_SSL_Verify_Server_Cert: No

                Last_IO_Errno: 0

                Last_IO_Error: 

               Last_SQL_Errno: 1032

               Last_SQL_Error: Could not execute Update_rows_v1 event on table bacula.Media; Can't find record in 'Media', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the event's master log mysql-bin.000204, end_log_pos 168850009

  Replicate_Ignore_Server_Ids: 

             Master_Server_Id: 2

               Master_SSL_Crl: 

           Master_SSL_Crlpath: 

                   Using_Gtid: No

                  Gtid_IO_Pos: 

1 row in set (0.01 sec)

ERROR: 

No query specified

mysql>