Thank you.
Below is my configuration file(cgrates.json).
{
// Real-time Charging System for Telecom & ISP environments
// Copyright (C) ITsysCOM GmbH
//
// This file contains the default configuration hardcoded into CGRateS.
// This is what you get when you load CGRateS with an empty configuration file.
"rals": {
   "enabled": true,                  // enable Rater service: <true|false>
   "cdrstats_conns": [
      {"address": "*internal"}
   ],
   "historys_conns": [
      {"address": "*internal"}
   ],
   "pubsubs_conns": [
      {"address": "*internal"}
   ],
   "users_conns": [
      {"address": "*internal"}
   ],
   "aliases_conns": [
      {"address": "*internal"}
   ],
},
"data_db": {Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â // database used to store runtime data (eg: accounts, cdr stats)
    "db_type": "redis",                  // data_db type: <redis|mongo>
    "db_host": "127.0.0.1",               // data_db host address
    "db_port": 6379,                   // data_db port to reach the database
    "db_name": "10",                   // data_db database name to connect to
    "db_user": "cgrates",                // username to use when connecting to data_db
    "db_password": "",                   // password to use when connecting to data_db
    "load_history_size": 10,            // Number of records in the load history
},
"stor_db": {Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â // database used to store offline tariff plans and CDRs
    "db_type": "mysql",                  // stor database type to use: <mongo|mysql|postgres>
    "db_host": "127.0.0.1",               // the host to connect to
    "db_port": 3306,                  // the port to reach the stordb
    "db_name": "cgrates",               // stor database name
    "db_user": "root",               // username to use when connecting to stordb
    "db_password": "hammer",                  // password to use when connecting to stordb
    "max_open_conns": 100,               // maximum database connections opened
    "max_idle_conns": 10,               // maximum database connections idle
    "cdrs_indexes": [],                  // indexes on cdrs table to speed up queries, used only in case of mongo
},
"scheduler": {
   "enabled": true,                  // start Scheduler service: <true|false>
},
"cdrs": {
   "enabled": true,                  // start the CDR Server service: <true|false>
   "cdrstats_conns": [
      {"address": "*internal"}
   ],
},
"cdrstats": {
   "enabled": true,                  // starts the cdrstats service: <true|false>
},
//"rls": {
//   "enabled": true,                  // starts ResourceLimiter service: <true|false>.
//Â Â Â "cdrstats_conns": [
//Â Â Â Â Â Â {"address": "*internal"}
//Â Â Â ],
//},
"cdre": {
   "*default": {
      "cdr_format": "csv",                     // exported CDRs format <csv>
      "field_separator": ",",
      "data_usage_multiply_factor": 1,            // multiply data usage before export (eg: convert from KBytes to Bytes)
      "sms_usage_multiply_factor": 1,               // multiply data usage before export (eg: convert from SMS unit to call duration in some billing systems)
       "generic_usage_multiply_factor": 1,               // multiply data usage before export (eg: convert from GENERIC unit to call duration in some billing systems)
      "cost_multiply_factor": 1,                  // multiply cost before export, eg: add VAT
      "cost_rounding_decimals": -1,               // rounding decimals for Cost values. -1 to disable rounding
      "cost_shift_digits": 0,                     // shift digits in the cost on export (eg: convert from EUR to cents)
      "mask_destination_id": "MASKED_DESTINATIONS",   // destination id containing called addresses to be masked on export
      "mask_length": 0,                        // length of the destination suffix to be masked
      "export_dir": "/tmp/cgr_fsevsock/cgrates/cdre",         // path where the exported CDRs will be placed
      "header_fields": [],                     // template of the exported header fields
      "content_fields": [                        // template of the exported content fields
         {"tag": "CgrId", "type": "*composed", "value": "CGRID"},
         {"tag":"RunId", "type": "*composed", "value": "RunID"},
         {"tag":"Tor", "type": "cdrfield", "value": "ToR"},
         {"tag":"AccId", "type": "*composed", "value": "OriginID"},
         {"tag":"ReqType", "type": "*composed", "value": "RequestType"},
         {"tag":"Direction", "type": "*composed", "value": "Direction"},
         {"tag":"Tenant", "type": "*composed", "value": "Tenant"},
         {"tag":"Category", "type": "*composed", "value": "Category"},
         {"tag":"Account", "type": "*composed", "value": "Account"},
         {"tag":"Subject", "type": "*composed", "value": "Subject"},
         {"tag":"Destination", "type": "*composed", "value": "Destination"},
         {"tag":"SetupTime", "type": "*datetime", "value": "SetupTime", "layout": "2006-01-02T15:04:05Z07:00"},
         {"tag":"AnswerTime", "type": "*datetime", "value": "AnswerTime", "layout": "2006-01-02T15:04:05Z07:00"},
         {"tag":"Usage", "type": "*datetime", "value": "Usage"},
         {"tag":"Cost", "type": "*composed", "value": "Cost"},
      ],
      "trailer_fields": [],                     // template of the exported trailer fields
   },
   "customer_tpl": {
      "cdr_format": "csv",                     // exported CDRs format <csv>
      "field_separator": ";",
      "data_usage_multiply_factor": 1,            // multiply data usage before export (eg: convert from KBytes to Bytes)
      "sms_usage_multiply_factor": 1,               // multiply data usage before export (eg: convert from SMS unit to call duration in some billing systems)
       "generic_usage_multiply_factor": 1,               // multiply data usage before export (eg: convert from GENERIC unit to call duration in some billing systems)
      "cost_multiply_factor": 1,                  // multiply cost before export, eg: add VAT
      "cost_rounding_decimals": -1,               // rounding decimals for Cost values. -1 to disable rounding
      "cost_shift_digits": 0,                     // shift digits in the cost on export (eg: convert from EUR to cents)
      "mask_destination_id": "MASKED_DESTINATIONS",   // destination id containing called addresses to be masked on export
      "mask_length": 0,                        // length of the destination suffix to be masked
      "export_dir": "/tmp/cgr_fsevsock/cgrates/cdre",         // path where the exported CDRs will be placed
      "header_fields": [],                     // template of the exported header fields
      "content_fields": [                        // template of the exported content fields
         {"tag": "CgrId", "type": "*composed", "value": "CGRID"},
         {"tag":"AccId", "type": "*composed", "value": "OriginID"},
         {"tag":"ReqType", "type": "*composed", "value": "RequestType"},
         {"tag":"Tenant", "type": "*composed", "value": "Tenant"},
         {"tag":"Category", "type": "*composed", "value": "Category"},
         {"tag":"Subject", "type": "*composed", "value": "Account"},
         {"tag":"Destination", "type": "*composed", "value": "~Destination:s/^1(\\d+)/+$1/:s/^\\+(\\d+)/00$1/"},
         {"tag":"AnswerTime", "type": "*datetime", "value": "AnswerTIme", "layout": "2006-01-02T15:04:05Z07:00"},
         {"tag":"Usage", "type": "*composed", "value": "Usage"},
         {"tag":"Cost", "type": "*composed", "value": "Cost"},
      ],
      "trailer_fields": [],  Â
   },
},
"sm_freeswitch": {
   "enabled": true,            // starts SessionManager service: <true|false>
   "debit_interval": "5s",         // interval to perform debits on.
   //"rls_conns": [
   //   {"address": "*internal"}
   //],
   "channel_sync_interval": "10s",
   "event_socket_conns":[               // instantiate connections to multiple FreeSWITCH servers
      {"address": "
127.0.0.1:8021", "password": "ClueCon", "reconnects": 5}
   ],
},
"historys": {
   "enabled": true,                     // starts History service: <true|false>.
   "history_dir": "/tmp/cgr_fsevsock/cgrates/history",   // location on disk where to store history files.
},
"pubsubs": {
   "enabled": true,            // starts PubSub service: <true|false>.
},
"users": {
   "enabled": true,            // starts User service: <true|false>.
   "indexes": ["Uuid"],         // user profile field indexes
},
"aliases": {
   "enabled": true,
}
}
I did not see any error in syslog.