What happens when you use the command? When you’re not providing specific details it’s difficult to help. Since there has been confusion, perhaps it would be best if you could copy and paste the exact command you use and what appears to happen.
Also keep in mind that -reset-database will not output anything, whether it works correctly or not, which is perhaps not ideal. To verify that the reset was successful, look in the config folder and you should find that the index-v...db folder is gone.