Working with DHT22 and AHT21 humidity and temp. sensors

Hii, all, I am new to this platform. I am working on a little project for which I want to connect 4 temperature sensors, 3 temperature and humidity sensors and 2 pressure sensors and possible also some airflow sensors to my arduino UNO. (I am trying to dry a organic material, and measure its water content based on the air that flows through it)

I am currently testing just the basics, so I am playing around with a DHT22 Temp. and humid. sensor and an LCD display. This works fine. I also tested an AHT sensor and printed the data onto the serial control and this also works fine. However, when I try to combine them I have some trouble. The LCD does not show the DHT data anymore.

I am quite new to coding so it is probably a beginner mistake, but I can't seem to find the solution because I don't get any errors.

Here is my code:

// include libraries
#include <LiquidCrystal.h>   //LCD screen library
#include <DHT.h>             //Temperature and Humidity sensor library
#include <Adafruit_AHTX0.h>  //Adafruit library for the AHT21 sensor
#include <Wire.h>            // library to work with Inter-Integrated Circuit (I2C) Protocol

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
LiquidCrystal lcd(0, 1, 8, 9, 10, 11);
Adafruit_AHTX0 aht;

// defining the pin for the DHT sensor
#define datapin 7  // Digital  pin the DHT is connected to
#define DHTTYPE DHT22
DHT dht(datapin, DHTTYPE);

// make custom temperature character
byte customChar[] = {
  B01110,
  B01010,
  B01110,
  B00000,
  B00000,
  B00000,
  B00000,
  B00000
};

void setup() {
  // setup the DHT to start measuring
  dht.begin();
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);
  lcd.createChar(0, customChar);
  Serial.begin(115200);
  if (!aht.begin()) {
    Serial.println("Could not find AHT? Check wiring");
    while (1) delay(10);
  }
}

void loop() {
  //measure temp and humidity with IC2
  sensors_event_t humidityA, tempA;
  aht.getEvent(&humidityA, &tempA);  //populate temp and humidity objects with fresh data
  Serial.println(String("T.a:") + String(tempA.temperature));
  Serial.println(String("RH.a:") + String(humidityA.relative_humidity));

  // measure temperature and humidity with DHT
  float tempD = dht.readTemperature();
  float humidityD = dht.readHumidity();
  // print the output on LCD screen
  lcd.setCursor(0, 0);  //setting for first lcd row
  // Print a message to the LCD.

  lcd.print(String("T.d:") + String(tempD) + String(" C"));
  lcd.write(byte(0));  // write special character behind C
  // setting second lcd row
  lcd.setCursor(0, 1);
  lcd.print(String("RH.a:") + String(humidityD) + String("%"));

  delay(2000);
}

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