I want to check client information from firebase server and I used 3 Qthread but it doesn’t start when verification finished.

FireBaseServer class codes
`class FireBaseServer:
def init(self,parent):
self.reConnectFireBase()
self.parent = parent

def reConnectFireBase(self):
    try:
        firebaseConfig = {firebaseconfig}
        fireBase = pyrebase.initialize_app(firebaseConfig)
        self.dataBase = fireBase.database()
        return True
    except Exception as error:
        return error
def checkAppStatus(self):
    data = self.dataBase.child("accounts").get()
    for values in data.each():
        if str(values.val()["appId"]) == self.findAppId():
            break
    if values.val()["clientStatus"] == "false":
        return False
    elif values.val()["clientStatus"] == "true":
        return True
    
def findAppId(self):
    configFile = configparser.ConfigParser()
    path = os.getenv('localappdata').replace("\","/")
    listdir = os.listdir(path)

    if "shopAppId.ini" in listdir:
        configFile.read(path+"/shopAppId.ini")
        return configFile['appId']['appid']
    else:
        return False
def checkLicenceVerification(self):
    data = self.dataBase.child("accounts").get()
    for values in data.each():
        if str(values.val()["appId"]) == self.findAppId():
            break
    startingDate = values.val()["startingDate"]
    licenceLength = values.val()["licenceLength"]
    endingDate = datetime.datetime.strptime(startingDate,"%Y-%m-%d %H:%M:%S.%f")+datetime.timedelta(days=int(licenceLength))
    now = datetime.datetime.now()
    if now > endingDate:
        self.dataBase.child("accounts").child(values.key()).update({"licenceStatus":"false"})
        return False
    else:
        return True`

ServerChecker:
`class serverConnector(QMainWindow):
def init(self):
super().init()
self.ui = uis.serverConnecter()
self.ui.setupUi(self)
self.setFixedSize(self.width(),self.height())
self.ui.progressBar.valueChanged.connect(self.setLabelText)
global speed

    #Threads
    self.threadConnectFireBase = QThread(self)
    self.threadConnectFireBase.run = self.connectFireBase

    self.threadCheckAppStatus = QThread(self)
    self.threadCheckAppStatus.run = self.checkAppStatus

    self.threadCheckLicenceVerification = QThread(self)
    self.threadCheckLicenceVerification.run = self.checkLicenceInfo

    self.fireBaseServer = FireBaseServer(self)
    self.threadConnectFireBase.start()

    self.timer = QTimer(self)
def setLabelText(self):
    val = self.ui.progressBar.value()
    if val == 100:
        self.goToMain()

def connectFireBase(self):
    self.ui.progressBar.setValue(1)
    self.ui.label.setText("Sunucu bağlantısı istendi.")
    bool = self.fireBaseServer.reConnectFireBase()
    if self.fireBaseServer.reConnectFireBase() == True:
        self.ui.progressBar.setValue(5)
        self.ui.label.setText("Sunucu bağlantısı kuruldu.")
        self.threadCheckAppStatus.start()
        self.threadConnectFireBase.quit()
    else:
        QMessageBox.critical(self,"Hata","Sunucuya bağlanırken hata oluştu. Hata: {}".format(bool))
        self.close()
def checkAppStatus(self):
    time.sleep(1)
    self.ui.label.setText("Uygulama durumu kontrol ediliyor...")
    if self.fireBaseServer.checkAppStatus() == False:
        self.ui.progressBar.setValue(35)
        self.ui.label.setText("Uygulama durumu doğrulandı.")
        self.threadCheckLicenceVerification.start()
        self.threadCheckAppStatus.quit()
    else:
        QMessageBox.critical(self,"Hata","Uygulama durumu doğrulanamadı. Hata: Uygulama başka bir cihazda açık yada önceki oturum doğru kapatılmadı.")
        self.close()
def checkLicenceInfo(self):
    time.sleep(1)
    self.ui.label.setText("Lisansınız kontrol ediliyor...")
    if self.fireBaseServer.checkLicenceVerification():
        self.ui.label.setText("Doğrulama tamamlandı. Uygulama başlatılıyor.")
        self.ui.progressBar.setValue(100)
        #self.threadCheckLicenceVerification.quit()

    else:
        QMessageBox.critical(self,"Hata","Lisansınız doğrulanamadı.")
        self.close()
def goToMain(self):
    self.window = Main()
    self.window.setWindowTitle("Mağaza Seç")
    self.window.showMaximized()
    self.window.setWindowIcon(QIcon("images/openfolder.png"))`