When you try to start your 1997 Toyota Corolla its just clicks what is wrong?

To give a generic answer, it kinda depends on what type of click.

If it is a rapid click-click-click-click... it is probably a dead (or near dead) battery.

If it is just one solid "click", it is probably your starter. The single click is the sound of the selinoid clicking in to try to engage the starter. If the starter is faulty, it won't engage and turn your engine over to start.