Because this problem seems to be identical with the other Thread I reckon it would be more useful for everyone if you asked the moderator to merge them.
I don't have the hardware you have, so may I make a suggestion for something to try ...
I would write a short sketch that just puts a HIGH output on one of the connections to the driver board and then measure the voltage across the relevant motor coil. Then do the same with a LOW output. Then move on to each of the other connections. This will allow you to satisfy yourself that power is getting to the motor coils. It would also be useful to measure the current in each coil.
Then you need to figure out the order in which the coils need to be energized to make the motor move. This document gives a lot of info about steppers. And then write some very simple code to generate a suitable series of outputs to give the right power sequence. At that stage you will probably know enough to figure out why the library code isn't working.
...R