Transferred the project from git incorrectly, how to fix it?

Question

git

Some time ago I made a backup of the project on a USB flash drive (stupidly copied the project with files and the .git folder) - everything went from here.
now deploying the backup, on another computer I realized that I don’t see the files,
but the git status command shows them in large lists, both new and deleted

>> git status
On branch dev

No commits yet

Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
        new file:   .env.example
        new file:   .gitattributes
        new file:   .gitignore
        new file:   app/.DS_Store

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
        modified:   .env.example
        modified:   .gitattributes
        modified:   .gitignore
        modified:   app/.DS_Stor

I can’t commit the data either: I get

>> git commit -am "test"
error: invalid object 100755 5c23e2e24fc5d9e8224d7357dbb583c83884582b for 'artisan'
error: invalid object 100755 5c23e2e24fc5d9e8224d7357dbb583c83884582b for 'artisan'
error: Error building trees

what to do?