Issues with editing a Keynote presentation

I recently created a Keynote presentation in the Keynote app on my phone. I’ve been working with this presentation making edits and doing my work. Now all of a sudden, for some reason, when I open the Keynote app on my phone it immediately launches into the presentation not allowing me to access the edit mode. Is there anyway I can stop this from happening so I can access my presentation in the edit mode and make additional changes. If nothing changes, the Keynote app on my phone Will be only good to watch the presentation as is and make no further changes or create no additional presentations. Any feedback would be greatly appreciated. Thanks