Code without Littlevgl - working 100%

#include <WiFi.h>
#include "HX711.h"
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include <Preferences.h>

#define TINY_GSM_MODEM_SIM800
#include <TinyGsmClient.h>
#include <HTTPClient.h>

#define ConversionSeconds 1000000 // Conversion factor for micro seconds to seconds //
#define SleepTime 10 //  Time ESP32 will go to sleep (in seconds)
#define NTP_SERVER "de.pool.ntp.org"
#define TZ_INFO "WEST-1DWEST-2,M3.5.0/02:00:00,M10.5.0/03:00:00" // Western European Time
#define BME_SCL 22    // Pin Define BME280
#define BME_SDA 21    // Pin Define BME280
#define SEALEVELPRESSURE_HPA (1013.25)
#define BUTTON 12     // Pin Define for a Button to set the scale to Tare


Adafruit_BME280 bme; // I2C BME 280
//SHT21 SHT21;


#define SerialMon Serial
#define RX2 16      // Pin Define für GSM Modul SIM800L
#define TX2 17      // Pin Define für GSM Modul SIM800L
#define SerialAT Serial2
#define TINY_GSM_RX_BUFFER 1024
#define TINY_GSM_DEBUG SerialMon
#define GSM_PIN ""

const int relaisPin = 13;  //Pin Define relais 3.3 Volt hx711 + bme180
const int relaisPin1 = 02; //Pin Define relais 4.1 Volt Sim800L
const int relaisPin2 = 15; //Pin Define relais 5v hx711



const int LOADCELL_DOUT_PIN = 35; // Define for HX711 Scale Pins
const int LOADCELL_SCK_PIN = 32; // Define for HX711 Scale Pins
int buttonState = 0;
bool buttonPressed = false;
HX711 scale;
Preferences preferences;  // Methode for saving Tare Results

unsigned long delayTime;

const int wdtTimeout = 20000;  //time in ms to trigger the watchdog
hw_timer_t *timer = NULL;

RTC_DATA_ATTR int BootCounter = 0;   // Variables that stays in RTC memory after reset
RTC_DATA_ATTR float Tare;
RTC_DATA_ATTR float temperature = 0;
RTC_DATA_ATTR float pressure = 0;
RTC_DATA_ATTR float approx_altitude = 0;
RTC_DATA_ATTR float humidity = 0;
//RTC_DATA_ATTR float g_temperature = 0;



void IRAM_ATTR resetModule()    //Function to Reboot ESP through Watchdog
{
  ets_printf("reboot durch watchdog\n");
  esp_restart();
}

void configureWatchdog()
{
  timer = timerBegin(0, 80, true);                  //timer 0, div 80
  timerAttachInterrupt(timer, &resetModule, true);  //attach callback
  timerAlarmWrite(timer, wdtTimeout * 1000, false); //set time in us
  timerAlarmEnable(timer);                          //enable interrupt
}



void FirstStart()
{
  Serial.println("Good mooooorning Vieeeetnaaam");
  delay(300);                             // Delay for preventing boot bug
  WiFi.mode(WIFI_STA);
  WiFi.begin("xxxxxxx", "xxxxxx");             // Start wifimode
  Serial.println("");

  while (WiFi.status() != WL_CONNECTED)  //
  {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());
  Serial.println("Fetching NTP Time");
  struct tm local;
  configTzTime(TZ_INFO, NTP_SERVER); // Sync systemtime timezone with NTP
  getLocalTime(&local, 1000);      // Sync local time for 1 seconds
  //WiFi.disconnect();
  //WiFi.mode(WIFI_OFF);              //End wifimode
}

void setup()
{
  esp_sleep_wakeup_cause_t wakeup_cause; // Variable for wakeup reason
  setenv("TZ", TZ_INFO, 1);             // Setting timezone after reset
  tzset();
  pinMode (relaisPin, OUTPUT);          //switching relais on for 3.3V power (Display + Touch, HX711 Scale, BME Sensor)
  digitalWrite (relaisPin, HIGH);       //switching relais on for 3.3V power (Display + Touch, HX711 Scale, BME Sensor)
  pinMode (relaisPin2, OUTPUT);         //switching relais on for 4.1V power (SIM800l GSM Modul)
  digitalWrite (relaisPin2, HIGH);      //switching relais on for 4.1V power (SIM800l GSM Modul)
  pinMode (relaisPin1, OUTPUT);         //switching relais on for 5.0V power (HX711 Scale)
  digitalWrite (relaisPin1, HIGH);      //switching relais on for 5.0V power (HX711 Scale)
  pinMode(BUTTON, INPUT_PULLUP);       // define mode for tara button
  Serial.begin(115200);
  Serial.println("Setup start");
  configureWatchdog();
  ++BootCounter;
  Serial.println("Start Nr.: " + String(BootCounter));
  SerialAT.begin(9600, SERIAL_8N1);
  delay(2000);
  Serial.println("Display AN" );
  pinMode (4, OUTPUT);
  digitalWrite (4, HIGH);

  Serial.println("Initializing...SIM800L GSM Modul");
  delay(1000);

  SerialAT.println("AT"); //Once the handshake test is successful, it will back to OK
  updateSerialMon();
  SerialAT.println("AT+CSQ"); //Once the handshake test is successful, it will back to OK
  updateSerialMon();
  SerialAT.println("AT+CREG?"); //Once the handshake test is successful, it will back to OK
  updateSerialMon();
  SerialAT.println("AT+COPS?"); //Once the handshake test is successful, it will back to OK
  updateSerialMon();

  wakeup_cause = esp_sleep_get_wakeup_cause(); // fetching wakeupreason
  if (wakeup_cause != 3) FirstStart();     // new startup after manual reset

  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);   // beginig scale hx711 connection with pins from define
  scale.set_scale(28633.1136);                        // Scalefactor of the scale




  delayTime = 1000;
  bool status;
  // default settings
  // (you can also pass in a Wire library object like &Wire2)
  status = bme.begin(0x76);
  if (!status) {
    Serial.println("Could not find a valid BME280 sensor, check wiring!");
    while (1);
  }
  Serial.println();

}

void loop()
{
  timerWrite(timer, 0);
  tm local;
  getLocalTime(&local);
  Serial.println(&local, "Date: %d.%m.%y  Local Time from NTP: %H:%M:%S"); // Setting format for print in serial monitor

  button();     // calling tare button function
  wiegen();     // calling weight function
  klima();      // calling temprature and humidity and pressure function

  Serial.println("Entering Deepsleepmode \r\n \r\n");
  Serial.println("Good night sweet prince :* \r\n \r\n");
  digitalWrite (relaisPin, LOW);
  digitalWrite (relaisPin1, LOW);
  digitalWrite (relaisPin2, LOW);
  Serial.println("Display off");
  digitalWrite (4, LOW);

  esp_sleep_enable_timer_wakeup(SleepTime * ConversionSeconds);    // setting time interval for deep sleep
  esp_deep_sleep_start();                       // starting deep sleep mode
}

void button ()
{
  Serial.println("Bitte drücken Sie den Tara knopf für 5 sekunden");
  delay(500);
  buttonState = digitalRead(BUTTON); // define variable for tare button
  delay(100);
  Serial.println(buttonState);  // print zero if button is pressed
  if (buttonState == LOW){
    Tare = (scale.get_units(10)); // saves average from 10 measurements
    Serial.println(Tare);         // tells the value auf tare
    preferences.begin("Tara", false);   // open folder on esp to save tare value to be reset safe
    preferences.putFloat("TaraGewicht", Tare);    // saving tare value
    preferences.end();   // closing folder
  }
 }

void wiegen()
{
  scale.power_up(); //HX711 ADC booting
  float gewicht = 0;   // declaration of variable for weight
  Serial.print("Einzelablesung:\t");
  Serial.print(scale.get_units());    // reading actual wieght without tare result
  preferences.begin("Tara", false);   // opening a folder for saving and writing tara
  Tare = preferences.getFloat("TaraGewicht", 0);  // den Geschützten Wert aufrufen und in der Variablen Tare speichern
  gewicht = (scale.get_units(10));   // save the average from 10 meassurements
  gewicht = (gewicht - Tare);        // calculate actual weight
  Serial.print(gewicht, 1);         // printing result
  Serial.print("\t| Schnitt:\t");
  Serial.print(gewicht, 2);         // printing result
  Serial.print("\t| Schnitt:\t");
  Serial.println(gewicht, 3);       // printing result
  preferences.end();                // close folder
  scale.power_down();             // put the ADC in sleep mode

  if (gewicht < 0)              // if the result saved in gewicht is to low the alert sms function will be called
  {
  sms_weight ();
  }
}

void sms_weight ()
{

 delay(3000);       //delay for making sure gsm is connected
 SerialAT.println("AT+CSQ"); //Once the handshake test is successful, it will back to OK
 updateSerialMon();
 SerialAT.println("AT+CMGF=1"); // Configuring TEXT mode
 updateSerialMon();
 SerialAT.println("AT+CMGS=\"+xxxxxxxxxxx\"");//change ZZ with country code and xxxxxxxxxxx with phone number to sms
 updateSerialMon();
 SerialAT.println("ALAAARM!!! Bees left the building!!!...Powered by ESP32"); //text content
 updateSerialMon();
 SerialAT.write(26);
 delay(4000);       // delay for making sure sms is sent
}

void klima ()
{
  float temperatur = bme.readTemperature();                 //define variables for enviroment measurement
  float luftdruck = bme.readPressure() / 100.0F;            //define variables for enviroment measurement
  float luftfeuchtigkeit = bme.readHumidity();              //define variables for enviroment measurement
  //float g_temperature = (SHT21.getTemperature());         //define variables for enviroment measurement

  Serial.print("Temperature = ");
  Serial.print(temperatur);
  Serial.println(" °C");

  Serial.print("Pressure = ");
  Serial.print(luftdruck);
  Serial.println(" hPa");

  Serial.print("Humidity = ");
  Serial.print(luftfeuchtigkeit);
  Serial.println(" %");


 // Serial.print("Case Temperature = ");
 // Serial.print(g_temperature);
  //Serial.println(" *C");

  Serial.println();
  delay(500);

  if ((WiFi.status() == WL_CONNECTED)) {                    //if connected make a http connection to a php skript on a server to save
                                                                 enviroment values to a mysql database
     HTTPClient http;

    float temperatur = bme.readTemperature();
    float luftdruck = bme.readPressure() / 100.0F;
    float luftfeuchtigkeit = bme.readHumidity();

    String url;
    url += "https://xxxxxx.de/writemysql.php?temp=";
    url += String(temperatur);
    url += "&luftd=";
    url += String(luftdruck);
    url += "&luftf=";
    url += String(luftfeuchtigkeit);

    http.begin(url);
    http.GET();
    http.end();
    delay(1000);
    WiFi.disconnect(true);
    WiFi.mode(WIFI_OFF);              //End wifimode
}
}



void updateSerialMon()
{
  delay(500);
  while (Serial.available())
  {
    SerialAT.write(SerialMon.read());//Forward what Serial received to Software Serial Port
  }
  while(SerialAT.available())
  {
    SerialMon.write(SerialAT.read());//Forward what Software Serial received to Serial Port
  }
}