Issue while sending SMS through GSM module(SIMCOM SIM800)

Hello.

I am using Arduino UNO with A GSM module(SIMCOM SIM800).
And Using the below code…

//------------------------------------------------------
#include <SoftwareSerial.h>
SoftwareSerial mySerial(9, 10);

void setup()
{
mySerial.begin(9600); // Setting the baud rate of GSM Module
Serial.begin(9600); // Setting the baud rate of Serial Monitor (Arduino)
delay(100);
}

void loop()
{
if (Serial.available()>0)
switch(Serial.read())
{
case ‘s’:
SendMessage();
break;
case ‘r’:
RecieveMessage();
break;
}

if (mySerial.available()>0)
Serial.write(mySerial.read());
}

void SendMessage()
{
mySerial.println(“AT+CMGF=1”); //Sets the GSM Module in Text Mode
delay(1000); // Delay of 1000 milli seconds or 1 second
mySerial.println(“AT+CMGS=”+91XXXXXXXXXX"\r"); // Replace x with mobile number
delay(1000);
mySerial.println(“I am SMS from GSM Module”);// The SMS text you want to send
delay(100);
mySerial.println((char)26);// ASCII code of CTRL+Z
delay(1000);
}

void RecieveMessage()
{
mySerial.println(“AT+CNMI=2,2,0,0,0”); // AT Command to receive a live SMS
delay(1000);
}

//-------------------------------------

Getting Error Message as below

avrdude: ser_open(): can’t set com-state for “\.\COM5”
An error occurred while uploading the sketch