garage band doesn´t open. How can I install it again?

Hi, Garage band doesn´t open.

What exactly happens, when you try to open GarageBand?

What version of GarageBand do you have, and what is your system version? How to reinstall, will depend on how it has been instlled origionally.

What happened, before GarageBand suddenly stopped working? Or did it never work properly?

Regards

Léonie