My stories aren't following "guidlines" anyone care to explain?!

I went onto my stories thing and found a message about how my stories are not following the "writing guidlines". I made the effort to read through each of my stories and as far as i am concerned they seem pretty ok yet they won't be appearing on the new stories list so it's going to be harder for me to get more readers. If anyone could read through them and see where i'm going wrong or advise me on what to do i would be very grateful. I use a word processor when writing so my stories should not have any/many mistakes so i dont know what to do!