Several issues in the file,
1: the pin tag has the correction deformer in as the object, thats a virtual object and has no points.
Iv used the cyl for pinning object but iv added some thickness to it so it has enough points for cloth to use.
Next the cloth.
you have the emitter set to use a point selection but that selection doesnt cover all the object so that means no cloth in the section with no particles.
So take the selection out and it will work like this.