What happened?

This was my favourite note taking app for ?years I think. I keep EVERYTHING in gnotes. A few minutes ago I check my notes and all but one are gone. The whole app looks different. Was there an upgrade? Fortunately my daughter was able to find a section with my notes but they are scrunched up on one side. I cant use the app in its current state :(

Susibug about GNotes By Appest, v0.2