school project, error in my Code (EN,FR)

salut/hello

name project: domestic gsm alarm

ARDUINO ONU V.3
GSM SHIELD

FR
je travail sur une alarme ayant 2 fonction:
alerte
remote control ( active/désactive l'alarme)
j'ai actuellement une erreur que je ne comprend pas que faut t-il faire ?

EN
I work with an alarm with 2 function:
alert
remote control (turn on / off the alarm)
I currently have an error that I do not understand, what to do?
l'erreur/ error

voici le code

/*  (Domestic Alarm)
student project

GSM program with 2 function
- alert
- remote control
*/

// program by THOMAR DYLANN

#include <GSM.h>

#define PINNUMBER ""

GSM gsmAccess;
GSM_SMS sms;

// connnected device
const int mouvement = 4;
const int enableall = 13;
const int Alarmsound = 5;
const int Alarmsoundtime = 5000; // time for sound of alarm

//6 seconds in milliseconds
const unsigned int calibrationTime = 6000;

void setup() {
  Serial.begin(9600);

  pinMode(mouvement, INPUT);
  pinMode(Alarmsound, OUTPUT);
  pinMode(enableall, OUTPUT);

  // connection state
  boolean  notConnected = true;

  // calibrating
  for (unsigned int i = 0; i < calibrationTime; i += Alarmsoundtime * 2); {
    digitalWrite (Alarmsound, HIGH);
    delay(Alarmsoundtime);
    digitalWrite(Alarmsound, LOW);
    delay(Alarmsoundtime);

    {
    }

    void loop() {

      // arduino send Alert sms to user
      if (digitalRead(mouvement)) { //si on capte un mouvement
        SMS.send("0690******", "ALERTE! un mouvement suspect est détecté!"); //envoie SMS d'alerte
        Alarmsound(HIGH); //active sound in 5 seconds
        delay(5000);
        Alarmsound(LOW);
      }
    }
    {
    }
    switch (Alarmsound) {
      case 1:
        if (SMS.available()) { //Si on a recu un SMS
          if (SMS.read() == "on") {
            enableall(HIGH); //sonne l'alarme pendant 5 secondes
            SMS.send ("0690******", " L'alarme est activé");
            delay(5000);
            break;
          case 2:
            else if (SMS.read() == "off") {
              enableall(LOW);
              SMS.send ("0690******", " L'alarme est activé");
              delay(5000);
              break;
            }
          }
        }
    }

You appear to have an opening brace '{' towards the end of your Setup() when it looks like you want a closing one '}'?