Again, I opened the app and clicked the drawing in order to continue, but a message is shown in the screen: "The project cannot be open. This is not a valid Photoshop Touch" project. I didn't change anything the last time I edited it, I've never changed the archive. Yesterday it worked.
I don't know how to solve it, how to get it back, but it has been a lot of work and I don't want to lost it.
Please if anyone know what should I do or this has ever happened to you, answer this.
I use the app in a Samsung Tablet. (Samsung Galaxy Note 10.1).
The project that I need is very big, so that I can only use 3 layers.
I don't use Creative Cloud.
When I try to export the file anyway, it doesn't work. It just takes too long to load and doesn't finish.