Curve modifier won`t allow for input of object? When I try to pick my bezier curve as the object for my curve modifier it will give a modifier is disabled  message when I press apply.

The curve in edit mode

[1
It's named "curve" because it was originally a curve, but somehow it got converted to a mesh.

You need to use "Object -> Convert To... -> Curve from Mesh" to make it back into an actual Bezier curve again. Then you'll be able to use it in the modifier.