Need help in connecting a 64 x 32 LED Matrix

I recently got a 64x32 LED Matrix. However, I'm not sure how to connect it to an arduino uno. I tried following the docs here: https://cdn-learn.adafruit.com/downloads/pdf/32x16-32x32-rgb-led-matrix.pdf, but I can't get my OLED matrix to display the example.

This is my current connection so far: Imgur: The magic of the Internet (I have the R0 at the top left variant. I tried connecting it to the ESP8266 before and it works well, just that I do not know how to translate the connections to the Arduino UNO) I have a feeling that my connection is wrong since I copied the PI to PO connections from here: https://twitter.com/witnessmenow/status/994336562329587725, and I only changed the PI to ESP8266 connections to the adafruit docs connections.

The code I am running is the example testshapes_32x64 from the RGB matrix panel library: https://github.com/adafruit/RGB-matrix-Panel/blob/master/examples/testshapes_32x64/testshapes_32x64.ino

EDIT: Since my connection for the CLK pin is connected to pin 8, I made changes in the code but it is still not working.

x-post from: https://www.reddit.com/r/arduino/comments/8qgm9x/need_help_in_connecting_a_64x32_oled_matrix_to_an/ and rgb led - Need help in connecting 64x32 LED Matrix - Arduino Stack Exchange