Game progress lost

Hello,

unfortunatly some of my progress on chapter 6 and all of my progress on chapter 7 has been lost in the game. I previously had to redo chapter 6 because it didn't count as complete even though I completed everything and reached a 5 star rating. It counted after I redid the chapter. After I finished the chapter I finished chapter 7 also with a 5 star rating - see achivements. Today when entering the game chapter 6 was stuck as none completed again. Eventhough the main story is already completed. The chapter ist also back to a 4.9 rating. Any progress with chapter 7 was completly lost. The build is definitely the on where I replayed the level and I'm completly sure I saved the progress multiple times through chapter 7 and after finishing it.

Can I get the progress back? And how to insure this doesn't happen again?

Thanks fpr the help.

Files:

Galacticare Debug Save Samstag, 2. November....zip

Galacticare_Achivements.png
Galacticare_Chapter 6.png
Galacticare_Completion Status.png
Galacticare_Achivements 2.png