please fix.

Ive been using this app forever and it has so many amazing qualities to it, but lately I cant save my drawings or art and if I leave the app for one minute I lose everything I worked on and I cant get it all back. Or it will crash and it will turn into colorful bar codes and I cant get it back. I try everything and I just lose it like that. I dont have the motivation to do it again because I worked so hard on it. I really want to give the app 5 stars but I cant.

a person that uses it about ArtStudio - Draw and Paint, v5.94