All the plastic tubes should be connected somewhere. If they are not water may have been sucked into the push button.
The flush mechanism is basically a plunger which lifts to flush the loo, the cances are that this is stuck. Try lightly rocking the central column in the cistern an see if this will free the plunger.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!