There are multiple factors, both internal and external to InDesign application, that can lead to document corruption. However, we can take a look and see if the file can be repaired. Please email your InDesign file to firstname.lastname@example.org. We will take a look at the document.
If the file is larger than 10 Mb, you can zip (and password protect) the file and upload to Creative Cloud account (or Dropbox/Wetransfer/GoogleDrive) and send us the document link.
Adobe InDesign teamNasturcya commented
I got the same problem with the file, error #5, I have i deadline of this project and really do not have time recovering by hand((((((
I have sent link of my file t you, i really hope for you.