That error is when there are blocks with bad hash....
You can maybe fix the files by injecting them, but you can't fix the folders, as their metadata is probably corrupted.
If you want that I will investigate that corruption and see if it is repairable by recalculating the hash you can send me the dump and otp privately
I am working those days to add writing capabilities to my tools, but it is going to take time, so deleting corrupted folder and readding it is not possible yet, but hopefully will be possible. I can write chkdsk like utility for wfs