Presets missing after reinstalling Lightroom Mobile

[Виктория290815001uka]

After I reinstalled the Lightroom app, all my presets and saved photos disappeared there. What can I do?

{Title edited by Moderator for clarity and to aid search queries} 

[Charlie.D · Accepted solution]

Deleting the free version of Lightroom also deletes images and presets that were inside the app.  If you use the free app then you need to restore the device from a back up you made when the presets were still in the app.

However, if you have a subscription then the presets would be stored in the Cloud and should sync down from there after reinstalling the app and signing back into your same paid account.