Crashes, loosing photos and Ghost data

Hi. In this period my adobe Scan app crashed 3 times, last of these Just today, with the consequence of loosing all the scans i made (something like 300/400 Pages of work divided in 3/4 different sessions), and now i'm with 3.2GB of Ghost datas i can't access (photo here allegated, and those are 3.2GB of pure files i can no longer access ,i even tried to looks for folders/Ghost folders connecting my phone via PC but couldn't find anything). I Hope those aren't Just Metadata or a gigantic temp folder but something i can recover. 

Every crash occured during the processing time from converting all the photos collected into PDF format caused by the lack of space in the dispositive (i couldn't Imagine that for processing something like 70 photos  were necessary 6 GB of free space), and i photographed directly from the app so i don't have a Copy of the photos saved in the gallery.

So if there's anything i can do to recover all my work would be appreciated.

The android version Is the 10 QKQ1.191215.002 and the device Is a redmi note 9 pro.

Sorry for any grammar and syntax error present on my post.