Provide a hi-res photo of the pin markings of the display and double check if the names match the names intended for your wiring.
Also be sure to properly solder the pins on the display.
It’s usually better to provide a photo of your actual setup rather than a link to some project your setup may or may not resemble.
And that image should be hi-res and clear to follow the wiring (color coded wires, fully visible, …)