8x8x8 LED Cube - only the half side works

Hello everyone
First of all im sorry for my english. And im a total beginner with arduino and this hole stuff (but I know, that is a challenge to begin with an 8x8x8 led cube)... So lets come to my problem. I build an 8x8x8 LEDCube with an arduino and a Raspberry Pi after this manual. I think i've done all right but it works just one side of the cube. But sometimes the (not working)side blinks up for a short time. So my question is: I've done this whole stuff with soldering. So could this be a problem, that I made something wrong? Or could it be a problem because of the old manual (not up to date anymore)? Or what else? I really hope someone could help me or at least have an idea.

If you have any questions, feel free to ask.

Please learn about the difference between "hole" and "whole".

Bad solder joints is a high probability. Google for images of good bad solder joints, then look at your own and re-make any that do not look as they should.

Have a good read of this.