diff --git a/database/socket/database.go b/database/socket/database.go
index afd525c..3a0f9fd 100644
--- a/database/socket/database.go
+++ b/database/socket/database.go
@@ -16,39 +16,26 @@ import (
 
 type Connection struct {
 	database.Connection
-	config   Config
 	listener net.Listener
 	clients  map[net.Addr]net.Conn
 }
 
-type Config map[string]interface{}
-
-func (c Config) Enable() bool {
-	return c["enable"].(bool)
-}
-func (c Config) Type() string {
-	return c["type"].(string)
-}
-func (c Config) Address() string {
-	return c["address"].(string)
-}
-
 func init() {
 	database.RegisterAdapter("socket", Connect)
 }
 
 func Connect(configuration interface{}) (database.Connection, error) {
-	var config Config
-	config = configuration.(map[string]interface{})
-	if !config.Enable() {
+	config := configuration.(map[string]interface{})
+
+	if !config["enable"].(bool) {
 		return nil, nil
 	}
 
-	ln, err := net.Listen(config.Type(), config.Address())
+	ln, err := net.Listen(config["type"].(string), config["address"].(string))
 	if err != nil {
 		return nil, err
 	}
-	conn := &Connection{config: config, listener: ln, clients: make(map[net.Addr]net.Conn)}
+	conn := &Connection{listener: ln, clients: make(map[net.Addr]net.Conn)}
 	go conn.handleSocketConnection(ln)
 
 	log.Println("[socket-database] listen on: ", ln.Addr())
diff --git a/database/socket/internal.go b/database/socket/internal.go
index 7984e5d..662dc8d 100644
--- a/database/socket/internal.go
+++ b/database/socket/internal.go
@@ -2,6 +2,7 @@ package socket
 
 import (
 	"encoding/json"
+	"log"
 	"net"
 )
 
@@ -14,6 +15,7 @@ func (config *Connection) handleSocketConnection(ln net.Listener) {
 	for {
 		c, err := ln.Accept()
 		if err != nil {
+			log.Println("[socket-database] error during connection of a client", err)
 			continue
 		}
 		config.clients[c.RemoteAddr()] = c
@@ -21,13 +23,14 @@ func (config *Connection) handleSocketConnection(ln net.Listener) {
 }
 
 func (conn *Connection) sendJSON(msg EventMessage) {
-	for i, c := range conn.clients {
+	for addr, c := range conn.clients {
 		d := json.NewEncoder(c)
 
 		err := d.Encode(&msg)
 		if err != nil {
+			log.Println("[socket-database] client has not recieve event:", err)
 			c.Close()
-			delete(conn.clients, i)
+			delete(conn.clients, addr)
 		}
 	}
 }