Problem mit D1 mini

// Import required libraries
#include <ESP8266WiFi.h>
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_BME280.h>
#include "SSD1306.h"  // siehe OLEDDisplay.h
#include "modified_font.h"               // modified_font.txt --> modified_font.h         

#define BME_SCK 0    // SCL GPIO0
#define BME_MISO 12
#define BME_MOSI 2   // SDA GPIO2
#define BME_CS 10

// OLED Display
#define SDA D6
#define SCL D5
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

SSD1306  display(0x3c, SDA, SCL);     

#define SEALEVELPRESSURE_HPA (1013.25)
unsigned long delayTime = 1000;

Adafruit_BME280 bme; // I2C: SCL = D1, SDA = D2
//Adafruit_BME280 bme(BME_CS); // hardware SPI
//Adafruit_BME280 bme(BME_CS, BME_MOSI, BME_MISO, BME_SCK); // software SPI

// Replace with your network credentials
const char* ssid = "ssid";
const char* password = "passwort";

void printValues(void);

 
void setup(){
  // Serial port for debugging purposes
  Serial.begin(115200);

  // Ini OLED Display
  display.init();
  display.flipScreenVertically();
  display.setTextAlignment(TEXT_ALIGN_LEFT);
  display.setFont(ArialMT_Plain_16); // set a font
  display.clear();
  display.setColor(WHITE);


  // Initialize the sensor
  if (!bme.begin()) {
    Serial.println("Could not find a valid BME280 sensor, check wiring!");
    while (1);
  }


  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi..");
  }

  // Print D1 Mini Local IP Address
  Serial.println(WiFi.localIP());
  
}
 
void loop(){
  printValues();
  delay(delayTime);
}

void printValues() {
  Serial.print("Temperature = ");
  Serial.print(bme.readTemperature());
  Serial.println(" *C");
  
  // Convert temperature to Fahrenheit
  /*Serial.print("Temperature = ");
  Serial.print(1.8 * bme.readTemperature() + 32);
  Serial.println(" *F");*/
  
  Serial.print("Pressure = ");
  Serial.print(bme.readPressure() / 100.0F);
  Serial.println(" hPa");

  Serial.print("Approx. Altitude = ");
  Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
  Serial.println(" m");

  Serial.print("Humidity = ");
  Serial.print(bme.readHumidity());
  Serial.println(" %");

  Serial.println();

  // Output OLED Display
    // clear display
    display.clear();
    // display temperature
    display.setFont(ArialMT_Plain_16); // set a font
    display.drawString(0,0, "Temperature: ");
    display.drawString(0,30, String(bme.readTemperature()));
    display.drawString(50, 30, "°C"); 
    display.display(); 

}