Allah's Kalam -- Allah's Speech: the Qur'an -- is Error Free.
Just the way Allah himself is Blemish Free.
But we are human. We are designed and created by Allah the way we are: with all the flaws and imperfections inherent to what is called Human Nature.
And yet, our job as Muslims in this world is to make our work as error-free as we possibly can make it.
And that means the world looking at any of the work we do should be able to say:
"Ha, Surely, A Muslim Has Worked On This Project!"