8 x 8 led matrix module
It seems that the 2 rows and columns have not been connected correctly.

In the diagram or with the example program you can find out to which pins these 
should be connected and check if the wiring is ok (and the wires itself).

You can also switch two wires around to see if it makes a difference.

Note that some Chinese LED matrices might use different pins (and do not have a data sheet).