Shield Bluetooth V2 SLD63030P

Hello,

I have bought a Bluetooth shield V2 SLD63030P to realized my baccalaureat project. But with the program the constructor supply, I succeed in doing to connect the shield with the application but I can’t send a message from the application or the Arduino.
Can you help me to resolve this problem please ?

#include <SoftwareSerial.h>   //Software Serial Port

#define RxD         6
#define TxD         7

#define PINLED      9

#define LEDON()     digitalWrite(PINLED, HIGH);
#define LEDOFF()    digitalWrite(PINLED, LOW);

#define DEBUG_ENABLED  1

String chaineRecue;

SoftwareSerial blueToothSerial(RxD,TxD);

void setup()
{
    Serial.begin(115200);
    pinMode(RxD, INPUT);
    pinMode(TxD, OUTPUT);
    pinMode(PINLED, OUTPUT);
    LEDOFF();
    
    setupBlueToothConnection();
}

void loop()
{
    char recvChar;
    
    while(1)
    {
            recvChar = blueToothSerial.read();
            chaineRecue += recvChar;
            Serial.print(chaineRecue);
            
            if(chaineRecue.indexOf("allume")>0)
            {
                LEDON();
            }
            else if(chaineRecue.indexOf("eteint")>0)
            {
                LEDOFF();
            }
    }
}

/***************************************************************************
 * Function Name: setupBlueToothConnection
 * Description:  initilizing bluetooth connction
 * Parameters: 
 * Return: 
***************************************************************************/
void setupBlueToothConnection()
{	

	
	
	blueToothSerial.begin(115200);  
	
	blueToothSerial.print("AT");
	delay(400); 

	blueToothSerial.print("AT+DEFAULT");             // Restore all setup value to factory setup
	delay(2000); 
	
	blueToothSerial.print("AT+NAMESeeedBTSlave");    // set the bluetooth name as                                                                                                                                             //"SeeedBTSlave" ,the length of bluetooth name must less than 12 characters.
	delay(400);
	
    blueToothSerial.print("AT+PIN0000");     // set the pair code to connect 
	delay(400);
	
	blueToothSerial.print("AT+AUTH1");
    delay(400);    

    blueToothSerial.flush();

}