Urgent Issue with Accessing and Editing Photos in Lightroom Mobile (Free Version)

I can no longer access, edit, or export the photos I previously worked on. Additionally, I cannot re-import or re-edit those photos. To make matters worse, all of my saved presets and user presets have disappeared. What is the solution?!😭  I can't re-edit those previously edited photos.. what i can do? How can i get back my photos? Or how can i re-import & edit photos again?? I need quick solution please.