Why isnt a Role Name List popping us when I try to Add a New User? It wont allow me to add a user but its not allowing me to choose a role?

Why isnt a Role Name List popping us when I try to Add a New User? It wont allow me to add a user but its not allowing me to choose a role?

Why isnt a Role Name List popping us when I try to Add a New User?  It wont allow me to add a user but its not allowing me to choose a role?