One of docker node has gone offline with strange reason

Using HDD - yes. If you could use docker with a temporary RAM disk, then it would be faster, but you need to have 2x amount of RAM for the size of the restoring database.
See

but you use

instead of

Get-ChildItem F:\Storj4.3\storage\

The same problem here:

the path F:\StorjD4.3\bandwidth.db doesn’t exist, because the actual path is F:\Storj4.3\storage\bandwidth.db

You may use TAB key to finish typing path, i.e. start with f:\Sto then press TAB on your keyboard, it should ether finish the path or give you a suggestion. Or you may just copy path from the Explorer and paste it to the terminal.