I2C LCD White Bars Error

Other Hardware Displays
1

Hello Arduino Forums,
My name is Malte and I recently received my first I2C LCD.
I happily opened the package that came from China, opened it, uploaded my first Sketch to my Uno and now it doesn't work. A bummer :/. I attached a picture of it, and down below you can see the code I used. I used fmalpartida's newliquidCrystal library 1.3.4. Here is the image as an Imgur link.Thank you for taking your time to read this, Greetings,
Malte.

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x38);  // Set the LCD I2C address

void setup()
{
  lcd.begin(16,2);               // initialize the lcd 

  lcd.home ();                   // go home
  lcd.print("Hello, ARDUINO");  
  lcd.setCursor ( 0, 1 );        // go to the next line
  lcd.print ("Hi Arduinoforum");
}

void loop()
{}
2

Ok, changing the adress seems to fix it, here's the new Adress that works for me:

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C  lcd(0x27,2,1,0,4,5,6,7);

I'm happy that I could fix it myself, but I'm not delting this post in cas someone has the same problem as me. Thanks for reading again, Greetings,
Malte