When I try to scan the i2c address it stays stuck on "i2c Address Scanner" which is the first line of the code. My screen is connected with VCC-5V, GND-GND, SCL- 4.7K resistor->A5, SDA- 4.7K resistor->A4. Nothing displays on screen, and I even tried without the resistors. I also tried with some 10K resistors and same result.
Here in the picture you can see how I connected the screen to the nano. SDA-A4, SCL-A5, VCC-5V, GND-GND.