Help Restoring PMD EOS save

[Draglen]

Hi guys,

I recently backed up pokemon mystery dungeon Explorers of Sky save File with DSi  (Release Fakes · edo9300/ndsi-savedumper · GitHub) ..
Then i made a new game, and wanted to revert back the save

Later i saw that the save was only of 8 kb, and the previous game was of my sister's ...

Is there any way to restore / recreate the save? 

i'm also attaching the bad save

 

I made / tried some research and opening the save with hex editor, it show some info, but i don't know where to start

 

Thank you to everyone that will help me

pokemon_md_sabrina.sav

[Draglen]

Any news..?