First link form my previous post was from store where I bought matrices.
No it was a You Tube video. There was no indication of it being a link to your matrix. You have to look hard to get to the suppler. Cheap no data sheet far east suppler
Also you did not mention you were following an Instructables page. These by and large are crap and written by people who do not know what they are doing and attract people with even less of an idea of what they are doing.
Quite honestly I don't think you are up to making this project with your current state of knowledge, you will not or can not answer any questions that would give us a clue as to the nature of the Matrix and short of buying one of these we have no way of knowing what sort way this matrix is wired.
To find out you need to light up one LED at a time, starting from zero and note the X-Y coordinates of what LED lights up. Knowing this you then have to correct the crap indestructible code which you refuse to post.